Weight loss and blood pressure

15. August 2008 William Davis (6)
Here's another thought with regards to time issues with weight loss: reductions in blood pressure (BP).

The previous post talked about how triglycerides initially go up, sometimes way up, when weight drops, only to be followed months later by substantial drops. HDL initially drops in response to the triglyceride fluctuations, only to be followed by a rise.

Blood pressure also shows a curious pattern that is largely dependent on age.

Say someone in their 20s or 30s, for instance, loses 30 lbs (through elimination of wheat and cornstarch, say). BP usually drops within a few weeks, perhaps a month or two at most.

How about someone in their 70s? Say a substantial amount of weight is lost, say 50 lbs over 6 months. BP does indeed drop, but it may require 6 months or longer after weight plateaus for the full effects of BP-reduction to be fully expressed. But it will eventually drop.

Why the age-dependent difference?

It relates to the capacity of arteries to remain flexible and distensible. Over the years, cross-linking of collagen (a structural protein), glycation (glucose molecules attaching to proteins), loss of endothelial responsiveness to generate artery-dilating substances like nitric oxide, and arterial atherosclerotic plaque all all up to making older arteries less able to "relax" and BP to drop.

But given time and the proper effort, BP will eventually drop. Awareness of this time effect can help most people decide better when medications are necessary or if weight loss alone is sufficient to reach BP goals.

"I lost 30 lbs and my triglycerides went . . . up?"

13. August 2008 William Davis (6)
Brad needed to lose weight.

At 6 ft tall, he began the program at 291 lbs, easily 80 lbs overweight. He wore virtually all of it in his belly.

He had laboratory numbers to match: HDL 33 mg/dl, triglycerides 225 mg/dl, LDL (calculated) 144 mg/dl, blood sugar 122 mg/dl (fasting--clearly "pre-diabetic"), c-reactive protein 3.0 mg/dl. Among his lipoprotein abnormalities: small LDL representing 80% of all LDL (no surprise).

Readers of The Heart Scan Blog know that these are the patterns of the carbohydrate-indulgent. I asked Brad to eliminate all wheat flour products, all foods made with cornstarch, and follow a diet rich in healthy oils, raw nuts, vegetables, and lean meats.

Brad returned for a discussion about follow-up basic lipids (cholesterol) values four months later--31 lbs lighter, most of it clearly lost from his abdomen. He claimed he felt more energetic and clear-headed than he had in years.

His lipid panel: HDL 34 mg/dl, LDL 122 mg/dl, triglycerides 295 mg/dl. Brad's smile dissolved. "How could that happen? You said losing weight would make my HDL go up and my triglycerides go down!"

Yes, I had said that. But I was oversimplifying.

The truth is that, when there is weight loss, especially profound weight loss like Brad experienced eliminating wheat and cornstarch products, there is mobilization of fat stores. Fat is stored energy. Energy is stored as . . . triglycerides.

So when there is substantial weight loss, there is a flood of triglycerides in the blood, and triglyceride levels in the midst of weight loss can commonly jump up, not uncommonly to the 200-300+ mg/dl range. When triglycerides go up, there is also a drop in HDL (triglycerides interact with HDL particles, modify their structure and make them more readily destroyed, thereby dropping blood levels). Occasionally, substantial weight loss like Brad experienced will drop HDL really low, as low as the 20's.

Once weight stabilizes, this effect can last up to 2 months before correcting. Only then will triglycerides drop and HDL rise. The rise in HDL occurs even more slowly, requiring several more months to plateau.

In other words, weight loss like Brad's causes triglycerides to increase and HDL to decrease, to be followed later by a drop in triglycerides and a rise in HDL.

I know of no way to block this phenomenon. And perhaps we shouldn't, since this is how fat stores are mobilized and "burned off." Fish oil does blunt the triglyceride rise (perhaps through activation of lipoprotein lipase, an enzyme responsible for clearance of triglycerides), but doesn't eliminate it.

I call these changes "transitional" changes in lipids.

Patience pays. A few more months from now, Brad's numbers will be much happier, as will Brad.

Divorce court for the doctor-patient relationship?

10. August 2008 William Davis (4)
The doctor-patient relationship has gone sour.

This probably comes as no surprise to most of you, particularly if you've been following conversations here in The Heart Scan Blog:

Who is your doctor? discussing the emergence of the physician-as-hospital-employee phenomenon that causes your doctor to become the de facto portal (seller?) of hospital services to you, a model fraught with conflicts of interest.

Exploitation of trust, my observation that the enormous gap in heart disease prevention between the woefully ignorant (by necessity) level of sophistication of the primary care physician and the procedure-obsessed cardiologist leads to an exploitation of humans-for-heart-procedures because of the failure to institute genuine preventive efforts.

Bait and switch , a description of how a minor test or symptom can reap a bonanza of medical testing; a $20 "screening" test yields $10's of thousands in hospital procedures. If it were entirely due to the imprecision of medical testing and detection of disease, that might be forgivable. But it often is not: It has become utterly distorted by the profit model.



Lest you think that I am a kook ranting off in some backwoods corner (Milwaukee), here are the comments of New York Times' Health Editor Tara Parker-Pope in a series called Doctor and Patient, Now at Odds:

Lately I've been hearing a lot from patients who are frustrated, angry, and distrustful of doctors. Their feelings speak to a growing disconnect between doctors and patients and worries that drug companies, insurance rules, and hospital cost-cutting are influencing the care and advice that doctors provide.

Research shows that even among patients who like their personal physicians, there is a simmering distrust of the medical system and the doctors who work inside it.


(There's also a series of candid video interviews with people who echo these sentiments.)

There are a number of reasons for this increasing "disconnect," some of them articulated by Ms. Parker-Pope, others detailed in my blog posts.

The solutions, however, will not be found by advancing technology: the newest robotic surgery, a better defibrillator, a new statin drug, the next best chemotherapeutic agent. It will not be found by adding a new wing to the hospital. It will not be found by the reorganization of healthcare delivery achieved by converting primary care and specialty practice into an arm of hospital care. It will not be improved by employing "hospitalists." It will not emerge from legislation controlling insurance company practices. It certainly will not come from increasing marketing dollars spent by drug companies (who make $4 for every $1 spent on direct-to-consumer marketing).

The solutions will come from shifting the idea of care from a paternalistic, "I'm the doctor and I'll tell you what to do" approach, to the doctor-as-advocate-and-supporter of the patient. The physician should act as someone with a particular sort of expertise that can advise a patient.

But a caveat: The patient MUST be informed.

Proper information will not originate with the doctor. It will originate with internet-based information portals and tools that help you understand the issues, often with far greater depth than your doctor could ever provide. The physician needs to accept this role, one of advocate, adviser, but not of being in charge, not of viewing the patient as profit-center, not as an opponent in a power struggle.

Sadly, the last few years in online information portals has been dominated by the drug company-dominated websites like WebMD, nothing more than a deliverer of the conventional wisdom with nothing whatsoever aimed towards empowering patients in a self-directed healthcare model.

Some people call the emerging new empowered and information-armed patient Medicine 2.0. Unfortunately, Medicine 2.0 will first benefit the intellectual upper crust of Americans, the web-savvy and motivated to engage in health issues. But, give it 10 years, and we will witness the effects on an unprecedented broad scale. Part of the Information Age is acceleration of information dissemination. Imagine your children, facile with a computer mouse, posting comments on FaceBook, doing homework with Google and Wikipedia, now turning their attentions to health.

It will be a startling change.

In the meantime, be wary. Be empowered. Think increasingly about self-direction in your health.


In a comment to the Bait and switch post, Jennytoo offered an insightful response:

You are getting to the essence of the problem, and it's not just cardiology that is rife with what is, at bottom, malpractice.

There is little incentive for the profession as a whole to know anything about or promote prevention, and many incentives from hospitals, drug and insurance companies to stick with the status quo or to change it in their corporate favor. The formulaic, conventional statements purporting to be guidelines for prevention that are put out by various interest groups and in such publications as hospital-sponsored newsletters ("eat a 'balanced diet', avoid stress, etc.") are useless sops to the concept of prevention.

It is, and I fear is going to remain, up to motivated individuals, both physicians and patients, to reshape the system, and it's going to be a long frustrating struggle.

It's my personal conviction that if just 4 things were promoted to the public, and people actually practiced them, we could change the health profiles of the majority of people in this country for the better within two years or less. They are:

(1) education on and promotion of a true low-carbohydrate, whole foods, diet,
(2) measurement and supplementation of Vitamin D3,
(3) supplementation with DHA/EPA (found in Fish Oils), and
(4) measurement and supplementation of intracellular magnesium.

I am not a health professional, and others may want to add to this list, but I don't think any strong case can be made against any of the items. The wonderful and hopeful thing is that each of us can implement them ON OUR OWN, and thereby take charge of our own well-being. (The Life Extension Foundation is one organization which provides access to lab tests you can request on your own.)

If you have a physician who is willing and capable of being your partner, you are richly blessed, and that is the ideal we all should hope for. But in the more likely event that you do not have such a physician, and if your physician demonstrates little potential for becoming one, think about firing the one you have and finding another.

Sometimes we are forced by circumstances, particularly urgent ones, to deal with physicians who are not ideal, but the main impetus for change will come from us, the patients, and the expectations we communicate to our individual doctors. In the meantime, we can be self-reliant in our own prevention practices.

Wow. A woman after my own heart.

How much fish oil is enough?

9. August 2008 William Davis (7)

This post just furthers this line of thinking out loud: How much fish oil is "enough"?

Observations over the last 30 years followed this path: If a little bit of omega-3 fatty acids from fish are beneficial in reducing cardiovascular events, and a moderate intake is even better, is even more better? When have we reached a plateau? When do adverse effects outweigh the benefits?

Some insight can be gained through studies that examined blood levels of omega-3s. Let's take a look at some data from 2002, a comparison of men dying from heart disease vs. controls in the Physicians' Health Study, Blood Levels of Long-Chain n–3 Fatty Acids and the Risk of Sudden Death.

This is a table that shows the blood levels of various fatty acids Group with sudden death vs Control Group:




Several observations jump out:

--The total omega-3 blood content differed significantly, 4.82 vs 5.24% ("Total long-chain n-3 polyunsaturated")
--Total omega-6 content did not differ
--Arachidonic acid (AA) content did not differ
--Linolenic acid content did not differ (i.e., plant sourced omega-3)

The fact that neither omega-6 nor arachidonic acid content differed counters the argument that Simopoulos has made that the omega-6 to omega-3 ratio (intake, not blood levels) is what counts. It also argues against the EPA to AA ratio (and similar manipulations) that some have argued is important. In this study, only the omega-3 level itself made a difference; no ratio was necessary to distinguish sudden death victims vs controls.

Further, quartiles of omega-3 blood levels showed graded reductions of risk:




An omega-3 blood level of 6.87% conferred greatest risk reduction. Depending on the model of statistical analysis, risk reductions of up to 81-90% were observed. Wow.

Taken at face value, this study would argue that:

--An omega-3 fatty acid blood level of 6.87% (or greater?) is ideal
--The omega-3 fatty acid blood level stands alone as a predictor without resorting to any further manipulation of numbers, such as relating EPA and/or DHA to AA levels.

Of course, this is just one study, though an important one. It is also not a study based on any intervention, just an observational effort. But it does add to our understanding.


We will develop these issues further in our upcoming Track Your Plaque Webinar on Wednesday, August 20th, 2008.

Omega-6 / omega-3 ratio

7. August 2008 William Davis (11)
Most of us already know that the intake of omega-6 fatty acids in the American diet has gone overboard, much at the expense of the omega-3 fraction. This occurred as a result of the misguided advice of the 1970s and 1980s to eat polyunsaturated oils like corn, sunflower, and safflower, because of their presumed cholesterol-reducing properties compared to saturated fats. However, more recent examinations of this advice have suggested that the omega-6 fraction of oils present in polyunsaturated oils may amplify arachidonic acid and other inflammatory patterns despite the reduction in cholesterol (total and LDL).

Dr. Artemis Simopoulos of the Center for Genetics, Nutrition and Health in Washington, D.C. has written extensively on the role of omega-6 and omega-3 fatty acids in diet.

In a review entitled The Importance of the Omega-6/Omega-3 Fatty Acid Ratio in Cadiovacular Disease and Other Chronic Disease , Dr. Simopoulos collects the following comparison of omega-6 to omega-3 ratios from various populations:


Paleolithic humans 0.79
Greece (prior to 1960) 1.00-2.00
Current Japan 4.00
Current India, rural 5-6.1
Current United Kindom and northern Europe 15.00
Current United States 16.74
Current India, urban 38-50

(The numbers refer to the ratio of omega-6 to omega-3 intake.)


If we believe the observations of Dr. Loren Cordain and others, while paleolithic man died of trauma and infectious diseases, they did not die of heart disease. Paleolithic human intake of omega-3 exceeded that of omega-6.

Likewise, the traditionally low cardiac event regions of the world like Japan and Greece have less omega-3 intake than Paleolithic man, but still many times more than the U.S. and U.K.

Worst of all with an enormous preponderance of omega-6 over omega-3 are urban Indians, who experience among the highest rates of heart disease in the world.

Just for perspective, let's assume you eat an 1800 calorie per day diet, of which 30% of calories come from fat. This would amount to 540 calories per day from fat. With 9 calories per gram of fat, this means that there are 60 grams, or 60,000 mg, of fat in your diet per day.

Paleolithic man has been found to have existed on a diet consisting of 21% of calories from fats. Again assuming an 1800 calorie per day diet, that comes to 42 grams of fat per day (42,000 mg).

If we were to try to recreate the Paleolithic fat composition of diet, we would ingest 21,000 mg of omega-3 fatty acids (EPA, DHA, linolenic acid) per day. Even recreating a Japanese experience with a 4:1 ratio, it would mean 8400 mg of omega-3 per day. (Curiously, this does not agree with all estimates of Japanese intake of omega-3s.)

No matter how you look at it, cultures with lower rates of cardiovascular disease take in greater--much greater--quantities of omega-3 fatty acids.

So don't complain about your six fish oil capsules (usually containing 6000 mg of total oil, 1800 mg omega-3s)!

Dr. Bernadine Healy on heart scans

5. August 2008 William Davis (1)

A Heart Scan Blog reader brought the following tidbit to my attention.

Cardiologist and now writer for U.S. News and World Report, Dr. Bernadine Healy, wrote this editorial, a glowing endorsement of heart scans:

The approach is beautifully simple. Calcium accumulates in advanced plaques, so calcium visible in the heart's arteries indicates atherosclerosis. An exploding number of studies in the past few years have unequivocally shown that the calcium score predicts both heart attack and sudden death. As a generalization, patients with scores between 100 and 400 face three to four times the risk of a heart attack or death compared with others at the same age with a zero score. Over 400, that elevated risk more than doubles.

Most doctors rely instead on the Framingham calculator, which estimates a symptom-free person's risk of a heart attack in the next 10 years based on smoking history, blood pressure, cholesterol levels, sex, and age. It's available free online from the National Institutes of Health. Most people taking the test will have minimal or no coronary disease, though risk estimates over 9 percent should inspire vigorous preventive efforts. For some, however, coronary heart disease is sneaky, and Framingham will underestimate what lies ahead. Roughly half of those who suffer a major heart attack or sudden coronary death are symptom free. Calcium scores are additive to Framingham; they pick up the individual surprises by using X-ray vision to look inside the heart. No wonder insurance companies are scrambling to use coronary calcium scores—life insurers, that is.


Dr. Bernadine Healy is no small-time player. In addition to her academic credentials, she is former chief of the National Institutes of Health (the first woman to hold the influential post), former head of the American Red Cross, and former deputy director of the White House Office of Science and Technology Policy under the Reagan administration. An endorsement of CT heart scans, though written under the guise of a probing editorial, will do an enormous amount of good to overcome the hurdles in gaining wider acceptance of heart scans.

Those of us applying heart scans in everyday practice have long appreciated their enormous power to detect and track coronary plaque. Framingham scoring can't even touch the certainty and quantification provided by heart scans in day-to-day life. Hundreds of studies have validated their use, but they still suffer from lying in the shadows of the procedural bullies aiming to boost the number of heart catheterizations, angioplasties, stents, bypass surgeries.

Dr. Healy, a voice with great weight, not just a political figure but also a cardiologist and scientist, has done a great service to broadcast the message of heart scanning.

Mercury and fish oil

2. August 2008 William Davis (9)
As time passes, the dose of fish oil advocated in the Track Your Plaque program is going upward.

While epidemiologic studies, like the Chicago Western Electric Study and the Nurses' Health Study suggest that decreases in mortality from heart disease begin by just eating fish a couple times per month, there are newer data that suggest greater quantities confer greater benefits.

In the last Heart Scan Blog post, I discussed the recently-released ERA JUMP Study that demonstrated a relationship between higher omega-3 fatty acid blood content and reduced quantities of carotid and coronary plaque. The JELIS Study demonstrated a 19% reduction in cardiovascular events when fish-consuming Japanese added 1800 mg of EPA (only).

However, the suggestion that increased quantities of fish oil potentially yield greater protection from heart attack and facilitate coronary plaque regression is also stirring up worries about mercury exposure. So I dug up a Heart Scan Blog post from a year ago that discussed this issue and reprint it here.


I often get questions about the mercury content in fish oil. I've even had patients come to the office saying their primary care doctor told them to stop fish oil to avoid mercury poisoning.

Manufacturers of fish oil also make claims that this product or that ("super-concentrated", "pharmaceutical grade", "purified", etc.) is purer or less contaminated than competitors' products. The manufacturers of the "drug" Omacor [now Lovaza], or prescription fish oil, have added to the confusion by suggesting that their product is the most pure of all, since it is the most concentrated of any fish oil preparation (900 mg EPA+DHA per capsule). They claim that "OMACOR is naturally derived through a unique, patented process that creates a highly concentrated, highly purified prescription medicine. By prescribing OMACOR® (omega-3-acid ethyl esters), a prescription omega-3, your doctor is giving you a concentrated and reliable omega-3. Each OMACOR capsule contains 90% omega-3 acids (84% EPA/DHA*). Nonprescription omega-3 dietary supplements typically contain only 13%-63% EPA/DHA."

How much truth is there in these concerns?

Let's go to the data published by the USDA, FDA, and several independent studies. Let's add to that the independent (and therefore presumably unbiased) analyses provided by Consumer Reports and Consumer Labs (www.consumerlab.com). How much mercury has been found in fish oil supplements?

None.

This is different from the mercury content of whole fish that you eat. Predatory fish that are at the top of the food chain and consume other fish and thereby concentrate organic methyl mercury, the toxic form of mercury. Thus, shark, swordfish, and King mackerel are higher in mercury than sardines, herring, and salmon.

The mercury content of fish oil capsules have little to do with the method of processing and much more with the animal source of oil. Fish oil is generally obtained from sardines, salmon, and cod, all low in mercury. Fish oil capsules are not prepared from swordfish or shark.

Thus, concerns about mercury from fish oil--regardless of brand--are generally unfounded, according to the best information we have. Eating whole fish--now that's another story for another time. But you and I can take our fish oil to reduce triglycerides, VLDL, IDL, small LDL, and heart attack risk without worrying about mercury.


I am not advocating ad libitum eating of fish. Sadly, this may be related to excessive accumulation of contaminants. I am suggesting that greater quantities of omega-3 fatty acids from relatively contaminant- and mercury-free fish oil capsules.

More on this in an upcoming webinar on the Track Your Plaque website: Fish Oil and the Track Your Plaque Program - Is More Better?

ERA JUMP: Omega-3 fatty acids and plaque

1. August 2008 William Davis (5)

The results of the uniquely-constructed ERA JUMP Study were just released, a fascinating study of the relationship of omega-3 fatty acids to coronary and carotid plaque.

The study adds insight into why the Japanese experience only one third of the heart attacks of Americans, and why Japan occupies the bottom of the list for least heart attacks among all developed countries.

The Electron-Beam Tomography, Risk Factor Assessment Among Japanese and U.S. Men in the Post-World War II Birth Cohort Study (ERA JUMP), a collaborative U.S.-Japanese effort, compared three groups of men:

-- 281 Japanese men living in Japan
-- 306 non-Japanese men living in the U.S. (Pittsburgh, Pennsylvania)
-- 303 Japanese Americans (having both parents Japanese without “ethnic admixture”) living in Hawaii.

The last group represents a group that is genetically similar to the group in Japan, but exposed to an American diet and lifestyle.

Three main measures were compared:

-- Blood levels of omega-3 fatty acids, EPA and DHA)
-- Carotid intimal-medial thickness (CIMT, the thickness of the carotid artery lining that can serve as an index of body-wide atherosclerosis)
-- Coronary calcium (heart scan) scores.

Interestingly, at the start of the study, the Japanese men possessed an overall cardiovascular risk profile worse than the Americans: Though more slender (BMI 23.6), Japanese men were more likely to be smokers, alcohol drinkers, had more high blood pressure, and were less likely to take cholesterol medications. The Americans, conversely, although heavier (BMI 27.9), were less likely to be smokers and drinkers, and had a four-fold greater use of cholesterol medications.

The Japanese Americans were the most likely to be hypertensive, diabetic, with a similar proportion of overweight as the non-Japanese Americans.

Despite the overall greater heart disease risk for profile for Japanese men, compared to non-Japanese Americans they had 10% less CIMT. In addition, only 9.3% of Japanese men had abnormal coronary calcium scores vs. 26.1% of non-Japanese Americans. Japanese-Americans were the worst, however, with nearly 10% more CIMT than non-Japanese Americans and 31.4% with abnormal calcium scores.

The most intriguing finding of all was the fact that, of all the various groups and degrees of atherosclerosis, whether gauged via CIMT or coronary calcium scores, the blood level of omega-3 fatty acids was inversely related, i.e., the greater the omega-3 blood level, the less plaque by either measure was detected.

Japanese men had the highest omega-3 blood levels: twice that of the non-Japanese Americans. The Japanese-Americans had levels only slightly greater than non-Japanese Americans.

While other studies, like the GISSI Prevenzione study, have persuasively demonstrated that omega-3 fatty acids substantially reduce heart attack, a weak link in the omega-3 argument has been a study that links greater omega-3 intake with less atherosclerosis. The unique construction of the ERA JUMP Study, employing two groups with sharply different omega-3 intakes, very powerfully argues for the plaque-inhibiting effects of this fraction of fats.

How much omega-3 fatty acids do Japanese people eat? Estimates vary, depending on part of the country, coastal vs. inland, age, etc., but Japanese tend to ingest anywhere from 5 to 15-times more omega-3 fatty acids than Americans. The actual intake of omega-3 fatty acids (EPA +DHA) in Japanese ranges from 850 to 3100 mg per day.

Mediterranean diet and blood sugar

31. July 2008 William Davis (6)

Data such as that from the Lyon Heart Study have demonstrated that a so-called Mediterranean diet substantially reduces risk for heart attack.

But there are aspects of the Mediterranean diet and lifestyle that are not entirely sorted out.

For instance, what specific component(s) of the diet provide the benefit? Is it olive oil and linolenic acid? Is it red wine? Is it the reduced exposure to processed snack foods that Americans are indundated with? Is it their more slender builds and greater tendency to walk? How about exposure to the Mediterranean sun? What about the inclusion of breads, since in the Track Your Plaque program I advocate elimination of wheat products for many abnormalities?

Anyway, here's a wonderfully thoughtful set of observations from Anna about her experiences traveling Italy, trying to understand the details of the Mediterranean diet while also trying to keep blood sugar under control.


I just returned from a two week stay in Italy, doing a bit of my own "Mediterranean Diet" experiments. When practical, we sought out food sources and places to eat that were typical for the local area, and tried as much as possible/practical to stay away from establishments that mostly catered to tourist tastes. I was really curious to see how the mythical "Mediterranean Diet" we Americans are urged to follow compared to the foods really consumed in Italy.

The first week, we stayed in a rural Tuscan farmhouse apartment (agriturismo), so many, if not most of our meals were prepared by me with ingredients I bought at the local grocery store (Coop) or the outdoor market in Siena. In addition, I purchased really fantastic free-range eggs from the farm where we were staying. (Between some language issues and seasonality, eggs and wine were what we could buy from them - though I was tantalized by the not-quite-ripe figs heavy on many trees). Mostly, our meals consisted of simple and easily prepared fresh fruits and vegetables, rustic cured meats (salami, proscuitto, pancetta, etc.) hand-sliced at the deli down the road, fresh sausages, various Italian cheeses, plus plenty of espresso. It was a bit disappointing to find underripe fruit & tomatoes as well as old green beans in the grocery stores, not to mention too many low fat and highly processed foods, but all over Europe the food supply is becoming more industrialized, more centralized, and homogenous, so I'm not too surprised that it happens even in Italy. But even with the smaller grocery store size, the amount of in-season produce was abundant, yet one still was better off shipping from the perimeter of the store, venturing into the aisles only for spices, olive oil, vinegar, coffee, etc. Without the knowledge of where to go and the language to really talk in depth about food with people, I wasn't able to find truly direct and local sources for as many foods as I would have liked, but still, we ate well enough!

The first week I maintained blood sugar levels very similar to those I get at home, because except for the Italian specialties, we ate much like we always do. A few rare exceptions to my normal BG tests were after indulging in locally made gelato or a evening limoncello cordial, but even then, the BG rise was relatively modest and to me, acceptable under the circumstance. Even with the gelato indulgences, it felt like I might have even lost a few pounds by the end of the first week and my FBG didn't rise much over 100.

The second week we stayed in two cities (Florence & Rome), and I didn't prepare any of my own food because I didn't have a kitchen/fridge. I found it impossible to get eggs anywhere for breakfast, and the tickets our hotels provided for a "continental" breakfast at a nearby café/bar was always for a coffee or hot chocolate drink and some sort of bread or roll (croissant, brioche, danish, etc.). At first I just paid extra for a plate of salami and cheese if that was available - or went to a small grocery store for some plain yogurt, but then I decided to go off low-carb and conduct a short term experiment, though I didn't consume nearly as many carbs as a typical Italian or tourist would.

So I breakfasted with a brioche roll or plain croissant for breakfast with my cappuccino, but unfortunately no additional butter was available. I didn't feel "full" enough with such a breakfast and I was usually starving an hour or two later. Additionally, when I ate the "continental" breakfast, I noticed immediate water retention - my ankles, lower legs, and knees looked like someone else's at the end of a day walking and sightseeing, swollen heavy. Exercising my feet and lower legs while waiting in lines or sitting didn't seem to help.

Food is much more expensive in Europe than in the US, and the declining US$ made everything especially expensive (not to mention the higher cost of dining out rather than cooking at home), so we tried to manage food costs by eating simple lunches at local take-away places, avoiding the corporate fast food chains. I was getting tired of salami/proscuitto & cheese plates, but the typical "quick" option was usually a panini (sandwich). At first I tried to find alternatives to paninis, but the available salads were designed for side dishes, not main meals and rarely had any protein, and the fillings of the expensive sandwiches were too skimpy to just eat without the bread. So I started to eat panini, although I sometimes removed as much as half of the bread (though it was nearly always very excellent quality pan toasted flatbreads or crusty baguette rolls, not sliced America bread). So of course, my post-prandial BGs rose, as did my FBG. I also found my hunger tended to come back much too soon and I think overall I ate more than usual in terms of volume.

Then we deviated from the "Italian" lunch foods and found a better midday meal option (quick, cheaper, and easier to customize for LC) - stopping at one of the numerous kebab shops and ordering a kebab plate with salad, hold the bread (not Italian, but still Mediterranean, I guess). I felt much better fueled on kebab plates (more filling and enough protein) than paninis, though I must say I still appreciated the taste of caprese paninis (slices of fresh mozzerella and tomato, basil leaves, mustard dressing on crusty, pan-toasted flat bread). If I followed my appetite, I could have eaten two caprese paninis.

We had some great evening dinners, at places also frequented by locals. This often was a fixed price dinner of several courses ("we feed you what we want you to eat"). Multi-course meals included house wine, and invariably consisted of antipasta (usually LC, such as a cold meat and cheese plate), pasta course (much smaller servings than typical US pasta dishes), main course plus some side vegetables, and dessert/coffee. These were often the best meals we experienced, full of local flavor and tradition (sometimes with a grandmotherly type doing the cooking), and definitely of very good quality, though we noticed the saltiness overall tended to be on the high side. I ate from every course, including some of the excellent bread (dipped in plenty of olive oil) and usually about half of the pasta served (2 oz dry?), plus about half of the dessert. After these meals I always ran BGs higher than usual, varying from moderately high (120-160 - at home I would consider this very high for me) to very high (over 180). By late in the week, my FBG was into the 115 range every morning (usually I can keep it 90-100 on LC food). Nearly everything that week was delicious, well-prepared food, but the high carb items definitely were not good for my BG control in the long run.

And most days I was doing plenty of walking, sprinting for the Metro subway trains, stair climbing (4th and 5/6th floor hotel rooms!), etc. but since I didn't have my usual housework to do, it probably wasn't too different from my usual exertion level.

So it was very interesting to experience the "Mediterranean Diet" first hand. Meats and cheeses were plentiful, fruits and vegetables played a much more minor role (main courses didn't come with vegetables other than what was in the sauce, but had to be ordered as additional items), but the overall carbs were decidedly too many. As I expected, it wasn't nearly as pasta-heavy as is portrayed in the US media/health press, but it is still full of too much grain and sugar, IMO. Low fat has become the norm in many dairy products, sadly, and if the grocery stores are any indication, modern families are gravitating towards highly processed, industrial foods. Sugar seems to be in everything (I quickly learned to order my caffe freddo con panno or latte sensa zuccero - iced coffee with cream or milk without sugar) after realizing that adding lots of sugar was the norm).

And, after several days of breakfasting at the café near our Rome hotel (where carbs were the only option in the morning), I learned that our very buff, muscular, very flat-stomached, café owner doesn't eat pasta (said as he proudly patted his 6 pack abs). I probably could have stuck closer to the carb intake I know works better for my BG control, but I figured if I was going to go off my LC way of eating and experiment, this was the time and place.

And yes, there were far fewer really obese people than in the US and lots of very slender people, but I could still see there were *plenty* of overweight, probably pre-diabetic and diabetic Italians (very visible problems with lower extremities, ranging from what looked like diabetic skin issues, walking problems, acanthosis nigricans, etc.). Older people do seem to be generally more fit than in the US (fit from everyday life, not exercise regimes), but there were plenty of "wheat bellies" on men old and young, even more young women with "muffin tops", and simply too many overweight children (very worrisome trend). So it may well be more the relaxed Italian way of living life (or a combination of other factors such as less air conditioning, strong family bonds, lots of sun, etc?) that keeps Italian CVD rates lower than the American rates, more than the mythical "Mediterranean diet".

Who is your doctor?

27. July 2008 William Davis (7)

Primary care physicians are the initial entry point for healthcare for the majority of Americans.

Develop pneumonia; go to your family or internal medicine physician (internist) to be prescribed an antibiotic. Need your blood pressure or cholesterol checked? Develop a sore knee or swelling in your leg? Once again, go to your primary care physician.

Image courtesy Dedde'


Primary care physicians are a patient’s guide to a bewildering array of technology and specialists. If you require a specific diagnostic test or consultation with a specialist, your primary care physician will help you navigate through the maze, choosing the path that is best for you. He or she will order a chest x-ray for a cough and fever, provide vaccines to prevent flu or pneumococcal pneumonia, perform an annual physical. If you require hospitalization, your primary care physician will admit you. He or she will order diagnostic tests like MRI’s, ultrasounds, x-rays, and blood testing, usually performed in the hospital or a hospital-owned facility. If you require the services of a gastroenterologist, orthopedist, general surgeon, or neurologist, your primary care physician will refer you to the appropriate specialist.

That’s how it’s supposed to work, at least in principle. In fact, during the first eight decades of the 20th century, it did work that work way for the most part. Your primary care physician acted not just as a provider of healthcare, but as your advocate, someone who knew you and worked to protect your welfare. Your family doctor often knew your parents, maybe even delivered you at birth, and cared for your children. His children often went to the same schools as your children. He and his family lived in the same town and sometimes went to the same church.

That hardly happens any more. It’s more likely you got the name of your primary care physician from a doctor referral service provided by a hospital. Or you picked a name off a list provided by your health insurer. It’s also common to see one doctor, only to see another a year later. Two, three, or more different primary care physicians over a five-year period are common. Doctors come and go, since physician turnover in clinics and practices has been on the increase for years. Insurance companies frequently force policyholders to change doctors, requiring you to choose from a list.

The end result of this shuffling of primary care is increasing impersonality of the relationship. You probably don’t know your primary care physician outside of the 10-minute interaction you had six months ago. She probably never met your mother and will likely not care for your children. Two years from now, she will likely not be your doctor any more, replaced by someone else who obtains the details of your health from a chart. Your chart is more likely to be electronic, with the details of your health history listed in a checklist. There’s little room to detail the idiosyncrasies and quirks of your unique personality or health profile. Throw into this impersonal equation the fact that many doctors have become scared of patients because of potential for lawsuits, often over the most trivial of issues, or because of an error of oversight or misdiagnosis.

This flawed and impersonal system, though emotionally unsatisfying, can still work if each doctor who assumes a patient’s care maintains the ethic of putting health and welfare above all.

But what if your primary care physician is not just an advocate for your welfare, but is a representative of the hospital? What if there are hidden, unspoken financial incentives paid to your doctor to direct you to the hospital for diagnostic testing, hospitalization, and referral to specialists? If a headache becomes a $4800 MRI, or chest pain becomes a $4200 nuclear stress test, then a $14,000 heart catheterization, your primary care physician becomes the purveyor of far greater financial opportunity for the hospital. The entire interaction, founded on the proposition that your doctor actually cares about you, collapses in a heap of financially motivated testing and procedures. It appears to work, and you and your family can still obtain access to healthcare. The problem is that you’re likely to get too much of it.

This message has not been lost on the shrewd administrators at hospitals. Take a look at the ranks of primary care physicians who refer patients to some of your local hospitals. It is typical that a hospital system maintains several hundred primary care physicians on their payroll, all of whom are expected to refer patients to the hospital, cardiologists, and other proceduralists. Why so many?

Most primary care physicians today have signed contracts with a hospital. In other words, they are employees of the hospital. This practice is not unusual: the American Medical Association reported that 4 of 5 primary care physicians are now bound by such employment arrangements across the U.S. In effect, 80% of primary care physicians are legally bound by contract to direct patients to cardiologists who work at hospitals.

On top of contractual obligations, there are financial incentives for the volume of procedures that are generated as a result of referrals. The more procedures generated from an internist’s or family practitioner’s practice, the greater the end-of-year productivity bonus will be, not uncommonly totaling tens of thousands of dollars. Dr. Ted Phillips (not his real name, since he declined to allow me to use it) received a bonus check of $9,437 this year for his “productivity,” defined murkily as the return on specialist referrals. While the bonus may have helped him pay for his son’s college tuition, it clearly was a situation that made him acutely uncomfortable when asked.

Several primary care physicians are also quietly dismissed every year from the ranks of employed physicians for not maintaining a minimum flow of patients into the system.

Another hazardous point of entry: Many patients enter the hospital through the emergency room (ER). A patient in the emergency room is at his or her most vulnerable, seeking help for an urgent complaint and usually willing to accept whatever the ER physician advises. Hospitals know this. That’s why many systems insist that the ER physicians be employees of the hospital, with their practice habits subject to control. A patient goes to the ER with chest pain or breathlessness. The worst thing that can happen from a financial standpoint is for the patient to be evaluated and discharged. For this reason, a growing number of hospitals employ ER physicians, then proceed to legislate practice patterns. Consulting a cardiologist is strongly encouraged, since they generally provide access to the downstream revenue-producing procedures offered in the hospital. That way, what might have been a four hour, $2500 ER visit is converted into a $10,000 to $40,000 hospital stay, even when nothing was wrong in the first place. There are millions of people nationwide who have the hospital bills to prove it after being discharged with a diagnosis of indigestion.

Caveat emptor: Buyer beware.
Cureality | Real People Seeking Real Cures

An exercise in optimism

5. May 2007 William Davis (0)
Followers of the Track Your Plaque program already know that maintaining an optimistic viewpoint is important in gaining control over coronary plaque.

In fact, I believe that, in many cases, a sense of optimism may make or break your CT heart scan score-reducing efforts. Pessimists rarely drop their score, while optimists do so all the time.

This week posed a challenge to my optimism. I spent the last week on jury duty hearing the details of a murder case. For four days, I listened to blow-by-blow testimony about the totally pointless, unprovoked death of a young man by a drug-dealing thug. Much of the witness testimony was from people who shared the hopeless, violent world of the defendant.

I was, however, completely impressed by the dedication of the prosecuting attorney, a 50-some year old man who was clearly deeply dedicated to his mission and didn't once provide any indication that he was grandstanding or looking for some personal glory. He was doing his job and trying to obtain justice for the fallen victim. I was equally impressed by the judge, who seemed unfazed by the events but carefully explained why the system worked the way it did. After the trial, he provided some further insights to us jury members and I saw him as a human being who, like the prosecutor, was trying to make a small contribution to making the world better.

Though many of the witnesses who testified against the defendant shared his world, I was impressed with their courage in coming forward. They face the threat of reprisals, I'm sure, for coming forward to the law and testifying against a known career criminal. Several of them said that they were not after any reward, but simply wished to do the right thing and provide testimony that proved damning against the defendant.

I acted as the jury foreman and I was proud of how the jury members listened carefully, asked intelligent and probing questions, and then helped us render a confident and expeditious sentence: guilty.

If anything, despite the tragic circumstances, I was much heartened at how all the participants in this process played their part and justice (at least in the legal sense) was served.

Let optimism prevail, even in dire circumstances.

No need to re-invent the wheel

2. May 2007 William Davis (0)
I seem to be repeating myself lately, but I think this does bear repeating:

There's no need to re-invent the wheel when it comes to gaining control over your heart scan score.

The Track Your Plaque program is the most powerful approach known to help you gain control over your coronary atherosclerotic plaque and CT heart scan score, bar none. While 100% of people do not drop their score, more and more people every week are doing so. (One of the admitted weaknesses of the Track Your Plaque website is our failure to list more success stories; we're working on it.)

The basic program is quite simple:

--The Rule of 60 for lipids (LDL 60 mg/dl; HDL 60 mg/dl or greater; triglycerides 60 mg/dl or less)

--Identify hidden causes of plaque, esp. small LDL, Lp(a), and IDL, followed by specific corrective action

--Fish oil--minimum 1200 mg per day of EPA + DHA

--Normal vitamin D3 blood levels (We aim for 25-OH-vitamin D3 of 50-60 ng/ml)

--Normal blood sugar (<100 mg/dl)

--Normal blood pressure (<130/80)

--An optimistic attitude



Much of the other stuff--vitamin K, matrix metalloproteinase reducing strategies, flavonoid strategies, exercise-induced hypertension, etc.--are, for the majority, fluff. Their real role is in people who may have failed in stopping the rise of their heart scan score just doing the basics of the program.

If you neglect the basics, hoping to find some magic potion, I'm afraid the overwhelming likelihood is that you will fail. I've seen it happen time and again. Someone will come to my office with an extraordinary list of supplements--hawthorne, dozens of anti-oxidants, EDTA, concentrated flavonoid preparations, and on and on. Not only is it shockingly expensive to do this, it's also unnecessary and foolhardy. This kind of unfocused, hocus-pocus in the hopes of getting it right fail time after time.

The Track Your Plaque program, while not foolproof, is the best I know of. Stick to the basics and wander off when the basics fail. But there's extraordinary power in just achieving the basics.

Are we a front for drug companies?

2. May 2007 William Davis (3)
I was shocked recently when someone accused me and the Track Your Plaque website of being nothing more than a front for the drug industry, that we are promoting concepts with the hidden pharmacuetical agenda behind us.

Don't make me laugh. How in the world that kind of impression could be gotten from either the Heart Scan Blog or the Track Your Plaque website is beyond me.

But I occasionally do need to state explicity: We do not promote drugs, neither this Blog nor the Track Your Plaque website has ever sought nor been backed by pharmaceutical money. The only money that supports this website is our own and that from paying Track Your Plaque members.

In fact, I am quite proud of the unbiased content and commentary on both venues. I challenge anyone to point out how and where there is any suggested relationship to a hidden source of commercial backing. I assure you, there is none.

If I say a drug is worth you and your doctor considering, then I say so with a true belief in it, not because somebody or some company paid me to say so. If I say a drug stinks, I believe that too. If we use a specific supplement in the program, it's because we believe it truly adds value to a plaque-reversal program. We receive no money from drug, supplement, or other commercial interests to promote their products. Period.

What is "normal"?

1. May 2007 William Davis (2)
When it comes to laboratory values and medical testing, a common dilemma is knowing what is "normal." Let me explain.

First of all, when you receive a laboratory result for a test, a "reference range" or "normal range" is usually provided. Where did that range come from?

It varies from test to test. For instance, a low potassium is easy, because low potassium levels can lead to life threatening consequences, e.g., dangerous heart rhythms. High potassium likewise, because dangerous phenomena develop when potassium generally exceeds 5.5 mg/dl or so.

But what about something like HDL or LDL. Here's where confusion reigns. Often, "normal" is obtained by taking the average and saying that any value plus or minus two standard deviations (remember that painful class?) represents normal or reference range.

If that were true, what if we applied that principle to body weight. If we weighed several thousand adult women, the average would be in the neighborhood of 172 lbs (no kidding). Does that mean that 172 lbs plus or minus two standard deviations is normal? No, of course not.

There is therefore a distinction between "normal" and "desirable". For HDL cholesterol, your laboratory report might say that an HDL cholesterol of 40-60 mg/dl is normal. But is it desirable? I don't think so. The most frequent HDL level for a male with a heart attack is 42 mg/dl--hardly desirable.

Let's take triglycerides. The average triglyceride level in the U.S. is somewhere around 140 mg/dl. For those of us who do a lot of lipoprotein testing, we can tell you that triglycerides at this level, though generally regarded as being within the normal range, are associated with flagrant and obvious excesses of several abnormal lipoprotein particles that contribute to coronary plaque growth (VLDL and often IDL; small LDL; drop in HDL and shift towards small HDL).

So, always take the so-called "normal" or "reference" values on a lab report as crude guidelines that often have little or nothing to do with health or desirability. Unfortunately, many physicians are not aware of this and will declare any value within the normal or reference range as okay. An HDL of 40 mg is not okay. A triglyceride level of 140 mg is also not okay.

What is okay? What is desirable? That depends on the parameter being examined. From a basic lipid standpoint, of course, we regard desirable as 60-60-60. Desirability from a lipoprotein standpoint we will cover in a more thorough Track Your Plaque Special Report in future.

The wisdom of the masses

1. May 2007 William Davis (0)
My sister sent me these quotes:



"We don't like their sound, and guitar music is on the way out."

Decca Recording Co. rejecting the Beatles, 1962


"Stocks have reached what looks like a permanently high plateau."

Irving Fisher, Professor of Economics, Yale University, 1929


"Airplanes are interesting toys but of no military value."

Marechal Ferdinand Foch, Professor of Strategy, Ecole Superieure de Guerre, France


"Everything that can be invented has been invented."

Charles H. Duell, Commissioner, US Office of Patents, 1899



No doubt, conventional wisdom can often be laughably (tragically?) wrong. The problem is that, as absurd as all the above sentiments seem to us now and in retrospect, they represented the view of many people years ago. These views were held by many, including many people in positions of power and decision-making responsibility.

A more relevant but nonetheless laughable and widely held belief in 2007: coronary heart disease should be treated with hospital procedures.

Why is a disease that requires 30 years to develop treated only at the final moments with a procedure? Do you only change your car's oil when the engine is on its last legs? Or, do periodic, relatively effortless oil changes during the life of the car make better sense?

I witness just how brainwashed the public has become with this crazed notion when I meet someone socially at, say a fundraiser or cocktail party. When they ask what I do, I tell them I'm a cardiologist. The invariable response: "Oh, what hospital do you work out of?"

I tell them I don't, that I take care of the majority of heart disease right from the office. 99% of the time I get a puzzled look. If we had comic bubbles above our heads revealing our internal thoughts, it would read "Yeah, right. What a kook."

The notion that coronary heart disease is something that is manageable with simple tools for the majority of us in the early stages is entirely foreign to almost everybody. The hospitals and the medical industry have so succeeded in dazzling the public with images of staff in scrubs, rushing from emergency to emergency, lights flashing, scalpels flying. . . how can you possibly accomplish this at home or anywhere outside of the high-tech world of the hospital?

Well, I'm a cardiologist and I do it every day. We all need a figurative dose of electroshock therapy to shake ourselves of this crazy notion.

How important is l-arginine?

30. April 2007 William Davis (13)
Perhaps more than any other supplement, l-arginine causes frustration and confusion. It’s difficult to find, sometimes quite expensive, and some preparations cause loose stools.

Just how necessary is it?

L-arginine, you’ll recall, is a source of nitric oxide, or NO. Though it’s the same stuff as in car exhaust, NO provides a critical signaling role in your body’s cells that regulate a multitude of functions. Among the important roles of NO is to powerfully dilate, or relax, arteries. A constant flow of NO is required for health, particularly since each molecule persists only a few seconds.

L-arginine is the body’s source of nitric oxide. In addition, a peculiar but very effective blocker of l-arginine called asymmetric dimethylarginine, or ASDM, has recently been discovered to prevent the production of NO. Varied conditions like hypertension, diabetes, high cholesterol, excessive saturated fat or processed carbohydrate intake all lead to heightened levels of ASDM, often several-fold greater levels, and thereby effectively blocking NO production.

The “Arginine Paradox” is the name that some researchers in this field have given to the unusual property of l-arginine supplementation to “overpower” the blocking effects of ASDM. This is somewhat unusual in biologic systems in that an agent that blocks a receptor cannot usually be outmuscled by providing excess material for a reaction. Kind of like hoping that your car runs faster simply by topping up the gas tank.

Concrete observable benefits have been made for l-arginine in clinical trials, such as arterial relaxation that results in arterial enlargement (which can actually be seen in the cath lab); anti-inflammatory effects; reduction of blood pressure; enhancement of insulin responses, etc. All of these effects can be connected to beneficial properties that may facilitate atherosclerotic plaque regression and, indeed, there are limited data to document that this is true.

Drug companies may be greedy, but they’re not stupid. They’ve been vigorously pursuing this line of research for some years, a research path that led inadvertently to the erectile dysfunction agent, sildenafil (Viagra), and all its subsequent competitors. (Erectile dysfunction is another expression of endothelial dysfunction, since male erections are driven by the ability to dilate penile arteries.) The wonderful properties of NO enhancement continue to occupy research labs around the world.

Wow. So what’s the reluctance? In the early years of the Track Your Plaque program (meaning just a short 7-8 years ago), I was thoroughly convinced that l-arginine was a crucial, necessary part of a plaque regression program. Without it, you would rarely succeed. With it, the odds were tipped in your favor.

However, something curious has emerged recently. I’ve seen more and more people dropping their heart scan scores. Not just a little bit, but a huge amount. Witness our most recent record holder, Neal, who dropped his score 51% in 15 months. Just five years ago, this magnitude of reversal was unimaginable. Granted, Neal is our record holder, but others are obtaining 10, 18, 24, 30% drops in scores all the time. Many have done it without l-arginine.

Now, how about the people who have failed to stop a rising score? Would they do better with l-arginine as part of the mix? I believe so, but sometimes we never quite know except in retrospect. It has been a great dilemma for us trying to predict from the starting gate who will or who won’t drop their heart scan score.

My view from the trenches is that l-arginine packs its greatest atherosclerosis-fighting punch in the first year or two of use, when “endothelial dysfunction” is likely to be present (abnormal artery constriction). But as all other strategies take hold—fish oil, correction of lipid and lipoprotein abnormalities, weight loss (big effect), vitamin D (another very big effect), etc.—endothelial behavior improves over time. Perhaps l-arginine becomes a less necessary component over time.

There’s no doubt that uncertainty still surrounds the use and science surrounding l-arginine. However, if you’re interested in stacking the odds in your favor, particularly during the first year or two of your plaque-reducing efforts, I think that l-arginine is worth considering. It is cumbersome, it can be expensive, some preparations may even be foul. But in the big picture of life, with hospitals trying every possible ploy to get your body on a table for a procedure, doctors perverting their mission by signing employment contracts with hospitals and agreeing to usher you into the hospital as a paying patient whenever possible, and drug companies viewing you and me as a market for medications which may or may not be helpful, l-arginine is surely not that big a burden.

Track Your Plaque and non-commercialism

29. April 2007 William Davis (6)
If you're a Track Your Plaque Member or viewer, you may know that we have resisted outside commercial involvement. We do not run advertising on the site, we do not allow drug companies to post ads, we do not covertly sponsor supplements. We do this to main the unbiased content of the site.

We've seen too many sites be tempted by the money offered by a drug company only to see content gradually drift towards providing nothing more than cleverly concealed drug advertising. I personally find this deceptive and disgusting. Ads are ads and everyone knows it. But when you subvert content, secretly driven by a commercial agenda, that I find abhorrent.

That said, however, I do wonder if we need the participation of some outside commercial interests to help our members. In other words, many (over half) of the questions and conversations we have with people is about what supplement to take, or what medication to take. While we cannot offer direct medical advice online (nor should we) because of legal and ethical restrictions, I wonder if could facilitate access to products.

Many people struggle, for instance, with trusted sources for l-arginine, vitamin D, fish oil. Other people struggle with finding a heart scan center because of the changing landscape of the CT scanning industry. Could we somehow provide a clear-cut segment of the website that clearly demarcates what is commercial and non-Track Your Plaque-originated, yet at least provides a starting place for more info?

Ideally, we would have personally tried and investigated everything there is out there applicable to the program. But that's simply impossible at this stage.

I feel strongly that we will never run conventional ads on the site. Nor will we ever permit any outside commercial interest to dictate what and how we say something. The internet world is full of places like that. Look at WebMD. I find the site embarassing in the degree of commercial bias there. We will NEVER sell out like that, regardless of the temptation. People with heart disease are all conducting a war with the commercial forces working to profit from them--hospitals, cardiologists, drug companies, medical device companies (yes, even they advertise to the public, e.g., implantable defibrillators--no kidding). Genuine, honest, unbiased information is sorely needed and not from some kook who either knows nothing about real people with real disease, or has a hidden agenda like selling you chelation.

I'd welcome any feedback either through this Blog or through the contact@cureality.com.

The nattokinase scam

28. April 2007 William Davis (179)
A conversation about vitamin K2 commonly leads to confusion. Several people have asked about something called nattokinase.

The scientific data on the potential role of vitamin K2 deficiency in causing both osteoporosis and vascular calcification is fascinating. Along with vitamin D3, vitamin K2 may be an important factor in regulation of calcium metabolism. Supplementation may prove to be a major strategy for inhibition of vascular calcification.

Obtaining K2 in the diet is tricky, since it's present in just a handful of foods: egg yolks, liver, traditional cheeses, and natto. This is where the confusion starts.

Natto is a Japanese fermented soy product. I've had it and it's quite disgusting. Nonetheless, Japanese who eat natto experience less fracture. (A parallel study in heart disease has not been performed.) Natto is also a source of another substance called nattokinase.

Advocates (otherwise often known as supplement distributors) claim that nattokinase is a "fibrinolytic", or blood clot-dissolving, preparation that "improves blood flow, protects from blood clots, and prevents heart attacks and strokes."

Don't you believe it. This is patent nonsense. There are several problems with this rationale:

--Any oral fibrinolytic agent is promptly degraded in the highly acid environment of the stomach. That's why all medically used fibrinolytics are given intravenously. Drug companies have struggled for years to encapsulate, modify, or somehow protect protein (or polypeptide) products taken orally from degrading this way. They've never succeeded. That's why, for instance, growth hormone (a polypeptide) remains an injection, not an oral agent. An oral growth hormone, by the way, would sell like mad, so the drug companies would very much like to figure out how to bypass the degradative effects of stomach acid. One of the "researchers" behind the nattokinase claims boasts that he has single-handedly figured out how to protect the nattokinase molecule in the gastrointestinal tract. However, he won't tell anybody how he does it. Right.

--Fibrinolytic agents are extremely dangerous. In years past, we used to treat heart attacks with intravenous fibrinolytic agents like tissue plasminogen activator, urokinase, streptokinase, and others. They have fallen by the wayside, for the most part, because of limited effectiveness and the unavoidable dangers of their use. Fibrinolytics are "dumb": they dissolve blood clots in both good places and bad. While they might dissolve the blood clot causing your heart attack, they also degrade the tiny clot in your cerebral (brain) circulation that was protective. That's why fatal brain hemorrhages, bleeding stomach ulcers, and blood oozing from strange places can also occur with fibrinolytic administration. Believe me, I've seen it happen, and I've watched people die from them.

The idea that a small dose taken orally is healthy is ridiculous. Even if nattokinase worked, why the heck would you take an agent that has known dangerous and very real consequences?

Don't let this idiocy reflect poorly on the K2 conversation, which, I believe, holds real merit and is backed by legitimate science. This is symptomatic of a larger difficulty with the supplement industry: Insane and unfounded claims about one supplement erodes credibility for the entire industry. It gives regulation-crazed people like the FDA ammunition to go after supplements, something none of us need. You and I have to sift through the nonsense to uncover the real gems in this rockpile, real gems like vitamin D3, omega-3 fatty acids from fish oil, and, perhaps, vitamin K2. But not nattokinase.

Blood pressure with exercise

27. April 2007 William Davis (10)
Here's a frequently neglected cause for an increasing CT heart scan score: High blood pressure with exercise. Let me explain.

Paul's blood pressure at rest, sitting in the office or on arising in the morning, or at other relatively peaceful moments: 110/75 to 130/80--all in the conventional normal range.

We put Paul on the treadmill for a stress test. At 10 mets of effort (on the protocol used, this means 3.4 mph treadmill speed at 14 degree incline), Paul's blood pressure skyrockets to 220/105. That's really high.

Now, blood pressure is expected to increase with exercise. If it doesn't rise, that's abnormal and may, in fact, be a sign of danger. Normally, blood pressure should rise gradually in a stepwise fashion with increasing levels of exercise. But any blood pressure exceeding 170/90 is clearly too high with exercise. (Not to be confused with high blood pressures not involving exercise.) A handful of studies have suggested that a "breakpoint" of 170/90 also predicts heightened risk of heart attack over a long period.)

I see this phenomenon frequently--normal blood pressure at rest, high with exercise. This also suggests that when Paul is stressed, upset, in traffic congestion, under pressure at work, etc., his blood pressure is high during those periods, as well. I wouldn't be surprised to see other phenomena of underappreciated high blood pressure, like abnormally thick heart muscle (left ventricular hypertrophy), an enlarged thoracic aorta (visible on your heart scan), left atrium, perhaps even an abnormal EKG or abnormal kidney function (evidenced by an elevated creatinine on a standard blood panel).

Unfortunately, the treatments that reduce blood pressure are "stupid," i.e., they have no appreciation for what you are doing and they reduce blood pressure all the time, whether or not you're stressed, exercising, or sleeping.

Blood pressure reduction should begin with weight loss, exercise, reduction of saturated fats and processed carbohydrates (esp. wheat), magnesium replacement, vitamin D replacement. Think about CoQ10. After this, blood pressure medication might be necessary.

The message: Watch out for the blood pressures when you have a stress test. Or, if you have a friend who is adept at getting blood pressures, get a blood pressure immediately upon ceasing exercise. It should be no higher than 170/90.

Vitamin D2 vs. vitamin D3

26. April 2007 William Davis (21)
An interesting question came up on the Track Your Plaque Member Forum about vitamin D2 vs. vitamin D3. This often comes up among our patients, as well.

Vitamin D is measured in the blood as 25-OH-vitamin D and is distinct from 1,25-diOH-vitamin D, a kidney measure, a test you do not need unless you have kidney failure.

The human form of vitamin D is cholecalciferol and is usually obtained via activation of a precursor molecule in the skin on activation by the sun. You can also take cholecalciferol and it increases blood levels of 25-hydroxy vitamin D reliably.

However, there is a cheap, plant-sourced, alternative to vitamin D3, called vitamin D2, or ergocalciferol. D2 has far less effect in the body. Taking D2 or ergocalciferol orally is an extremely inefficient way to get D. Unfortunately, it's the form often used in milk and many supplements, even the prescription form of D. About half the multivitamins and calcium supplements I've looked at contain ergocalciferol rather than cholecalciferol.

Taking vitamin D2 yields very little conversion to the effective D3. This particular issues is maddening, as the USDA requires dairy farmers to add 100 units of vitamin D to milk, and D2 is often used. In other words, the D in many dairy products barely works at all. There are many children who rely on D from dairy products who are at risk for rickets and are not getting the D they need from dairy products because of this cost-saving switch. Do not rely on milk for vitamin D for your children.

D2 or ergocalciferol is often included in the blood measures of vitamin D along with vitamin D3. The only reason it's checked with blood work is to ensure "compliance,", i.e., see whether or not you're taking a prescribed ergocalciferol. Beyond this, it has no usefulness.

25-OH-vitamin D3, or cholecalciferol, is both the blood measure and the supplement you need. This is the one that packs all the punch. Keep in mind also that it is the oil-based gelcap you want, with more consistent and efficient absorption. Tablets usually barely work at all, even if it contains cholecalciferol. Most people who take calcium tablets with D, or multivitamin with D, not only are getting a powdered form of D, but also in trivial doses. It's the pure vitamin D3, cholecalciferol, in gelcap form you want if you desire all the spectacular benefits of vitamin D.
All posts by william-davis

One bite or many mouthfuls

6. January 2007 William Davis (0)
A reader brought this beautiful series of food photos to my attention:

http://www.wisegeek.com/what-does-200-calories-look-like.htm

It's simply a graphic display of what 200 calories of various foods look like. You'll note that vegetables and fruits permit large servings to yield 200 calories. Processed foods, on the other hand, require very little to tally up the same calorie load. In particularly, look how little in the way of wheat products are required to match that amount.

Heart scan curiosities #4

5. January 2007 William Davis (2)
Here's an interesting example of a 63-year old man with a heart scan score of 112. However, his aortic valve was also severely calcified (loaded with calcium). In other words, the normally flexible and mobile "leaflets" of the aortic valve were coated with calcium and other tissues that interfere with its free motion. The aortic valve is the starburst white in the center of the heart.








This is what the aortic valve should look like on a CT heart scan--you shouldn't see it at all.

The first man with the calcified valve will unfortunately require a new prosthetic aortic valve sometime in his future. This is usually determined with the help of an ultrasound, or echocardiogram, a better test for assessment of the aortic valve (though useless for detection of coronary plaque).

It's my suspicion that chronic and longstanding deficiency of vitamin D is among the factors that contribute to the abnormal deposition of calcium on the aortic valve. We desperately need more data on this. Nonetheless, perhaps this adds yet another reason to 1)get a CT heart scan, and 2) bring your vitamin D blood level to normal. (We aim for 50 ng/ml year round.)

Fish oil and the perverse logic of hospitals

4. January 2007 William Davis (6)
Hospitals are now starting to carry prescription fish oil, known as Omacor, on their formularies. It's used by some thoracic surgeons after bypass surgery, since fish oil has been shown to reduce the likelihood of atrial fibrillation (a common rhythm after heart surgery).

Why now? The data confirming the benefits of fish oil on atrial fibrillation has been available for several years.

It's now available in hospitals because it's FDA-approved. In other words, when fish oil was just a supplement, it was not available in most hospitals. Whenever I've tried to get fish oil for my patients while in hospital, you'd think I was trying to smuggle Osama Bin Laden into the place. The resistance was incredible.

Now that FDA-approved Omacor is available, costing $130 dollars per month for two capsules, $195 for the three capsule per day dose for after surgery, all of a sudden it becomes available. Why would this irrational state of affairs occur in hospitals?

Several reasons, most of which revolve around the great suspicion my colleagues have towards nutritional supplements. In addition, there's the litigation risk: If something has been approved by the FDA, their stamp of endorsement provides some layer of legal protection.

However, I regard those as pretty weak reasons. I am, indeed, grateful that fish oil is gaining a wider audience. But I think it's absurd that it requires a prescription to get it in many hospitals. Imagine, as the drug companies would love, vitamin C became a prescription agent. Instead of $3, it would cost far more. Does that make it better, safer, more effective?

Of course, no drug sales representative is promoting the nutritional supplement fish oil to physicians nor to hospitals. I now see people adding the extraordinary expense of prescription fish oil to their presription bills.

In my view, it's unnecessary, irrational, and driven more by politics and greed than actual need. Take a look at the website for Omacor (www.omacorrx.com). Among the claims:

"OMACOR is the only omega-3 that, along with diet, has been proven and approved to dramatically reduce very high triglycerides..."

This is a bald lie. Dozens of studies have used nutritional supplement fish oil and shown spectacular triglyceride-reducing effects.

Their argument against fish oil supplements:

"Dietary supplements are not FDA-approved for the treatment of any specific disease or medical condition. Get the Facts: nonprescription, dietary supplement omega-3 is not a substitute for prescription OMACOR."

Does that make any sense to you? Should you buy a GM car because only GM makes genuine GM cars? This is the silly logic being offered by these people to justify their ridiculous pricing.

How about: "The unique manufacturing process for OMACOR helps to eliminate worries about mercury and other pollution from the environment."

Funny...mercury in fish tends to be sequestered in the meat, not the oil. Independent reports by both Consumer Reports and Consumer Lab found no mercury, nor PCB's, in nutritional supplement fish oil. But just suggesting a difference without proving it may be enough to scare some people.

Just because something is used by a hospital does not make it better. The adoption of fish oil is hospitals is a good thing. Too bad it has to add to already bloated health care costs to enrich some drug manufacturer.

Repent for past sins

2. January 2007 William Davis (0)
If the food temptations of the holidays got the best of you, and you're now 5, 10, 15 lbs or more over your pre-holiday weight (our record is 18lbs!), then it's time for serious action.

One easy method to regain the control you may have lost is to pick some period, say, 3 days. During those three days, eat nothing but vegetables--no breads, meats, dairy products, certainly no cookies, cakes, pasta, etc., not even fruit. Follow this routine and weight drops rapidly. Vegetables are wonderful but sometimes boring, so use healthy condiments to spice them up: mustards (hot, brown, yellow, horseradish); healthy salad dressings, which are olive or canola oil-based; salsas, a fabulous garnish with no nutritional downside whatsoever; pesto; tapenades; horseradish added to other condiments or even by itself (wasabi).

Of course, fasting in one of its several variations is another rapid method to regain control. My favorite is to use soy milk in a modified fast, usually 4-6 glasses of a low-fat, low-sugar soy milk per day, along with plenty of water. (Please refer to the precautions detailed in the recent Track Your Plaque Special Report, Fasting: Fast Track to Control Plaque , particularly if you fast 5 days or longer or take blood pressure or diabetic medication.)

Of course, yo-yoing your weight--up during the holidays, down after their conclusion--is not good for you. It does raise the likelihood of diabetes, not to mention cultivate the patterns that contribute to coronary plaque growth, especially small LDL. But if temptation got out of control and you need to regain lost ground, these two strategies work fabulously well for most people.

If you've gained, say, 10 lbs during the holidays, but simply resume your usual habits, chances are you won't lose the weight. Year after year, this can add up to an enormous weight gain. The time to act is now. It's easier to lose the 10 lbs of weight you gained recently, rather than the 50 lbs you've stacked up over the past 5 years.

Wheat-free 2007

1. January 2007 William Davis (4)

Long ago, most of us made the change of reducing saturated fat in our diet. Few people now rely on butter (despite the idiotic butter vs. margarine controversy), full-fat dairy products, fried foods, and greasy meats. That's a healthy change, since saturated fat has conclusively been tied to various cancers, high blood pressure, rise in LDL, and is calorie-dense.

But if there were just one change you were to make beyond a reduction in saturated fat, a change that would translate into dramatic health benefits, it would be a drastic reduction, even elimination, of wheat products.

People do indeed eat enormous quantities of wheat flour-containing products. U.S. per capita consumption of wheat flour was 110 pounds in the early 1970s, and rose to 141 pounds in 1991. It's even higher now. 20% or more of most people's caloric intake every day is provided by wheat flour products.

Wheat containing foods are tasty and convenient. Witness the popularity of bagel shops, the goodie counter at Starbuck's, the proliferation of crackers, breads, and breakfast cereals at the grocery store. Patients are horrified when I suggest that they find a substitute for the sandwiches they eat every day. Even Mom said they were okay!

You're unlikely to hear much about this from the popular press. The wheat industry is enormous and exerts extraordinary clout, just like the drug industry. Texas alone farms 6 million acres of wheat, yielding over $2 billion for the state's economy. The "wheat chain" is complex and far-reaching: growers, processors, food manufacturers, the transportation industry, retailers, chemical producers, and on and on. Wheat futures are traded on the Chicago Board of Trade. Wheat is a major export industry for the U.S.

Of course, these are not evil people, intent on corrupting your health. In fact, most of them are probably working under the perception that they are raising a healthy product. The point is that the notion that wheat is healthy is deeply entrenched in the minds and economy of the U.S. Don't expect to hear unbiased commentary on the health effects of wheat products from most media sources.

What can you expect if you sharply reduce or eliminate wheat? The majority of people:

--Feel like a cloud has been lifted from their thinking.
--Don't experience the afternoon blah or tired feeling after lunch.
--Lose weight, sometimes substantial quantities.
--Raise HDL.
--Reduce small LDL.
--Reduce triglycerides, particularly if they start >100 mg/dl.
--Reduce blood sugar.

The reduction in small LDL can be especially impressive.

For most people, reducing or eliminating wheat is a sacrifice, a major change in food choices and even a loss of convenience. But the health benefits for most people can be dramatic.

Is vitamin D a "vitamin"?

29. December 2006 William Davis (5)
Vitamins are crucial participants in the body's reactions and are obtainable from food. Vitamin C, for example, comes from citrus fruits and vegetables. Vitamin K comes from green vegetables. The B vitamins are found in meats, soy, dairy products, and grains. Vitamin A comes from carrots, squash, and other orange and green colored vegetables.

How about vitamin D? What foods contain vitamin D? The list includes:


Food International Units(IU) vitamin D per serving

Cod liver oil, 1 Tablespoon 1,360
Salmon, cooked, 3½ ounces 360
Mackerel, cooked, 3½ ounces 345
Tuna fish, canned in oil, 3 ounces 200
Sardines, canned in oil, drained, 1¾ ounces 250

Milk, nonfat, reduced fat, and whole, vitamin D fortified, 1 cup 98
Margarine, fortified, 1 Tablespoon 60
Pudding, prepared from mix and made with vitamin D fortified milk, ½ cup 50
Cheese, Swiss, 1 ounce 12

Ready-to-eat cereals fortified with 10% of the DV for vitamin D, ¾ cup to 1 cup servings (servings vary according to the brand) 40

Egg, 1 whole (vitamin D is found in egg yolk) 20
Liver, beef, cooked, 3½ ounces 15

(Modified from the Office of Dietary Supplements, National Institutes of Health)


You'll note that the only naturally-occurring food sources of vitamin D are the modest quantities in fish, egg yolks, and liver. All the other vitamin D-containing foods like cereal, milk, and other dairy products have vitamin D only because humans add it.

It takes me (personally) 6000 units of vitamin D per day to bring my blood level to an acceptable 50 ng/ml. To obtain this from eating salmon, I would have to eat 58 ounces, or 3 1/2 pounds of salmon--every day. Or, I could eat 30 cans of tuna fish.

If I didn't want to eat loads of fish every day, I could drink 60 glasses of milk every day. After I recovered from the diarrhea, my vitamin D might be adequate, provided the milk indeed contained the amount stated on the label (which it often does not when scrutinized by the USDA).

If vitamin D is a vitamin, how are humans supposed to get sufficient quantities? I don't know anybody who can eat 3 1/2 lbs of salmon per day, nor drink 60 glasses of milk per day. But aren't vitamins supposed to come from food?




The problem is that vitamin D is not really a vitamin, it's a hormone. If your thyroid hormone level was low, you'd gain 20, 30, or more pounds in weight, your blood pressure would skyrocket, you'd lose your hair, become constipated, develop blood clots, be terribly fatigued. In other words, you'd suffer profound changes. Likewise, if thyroid hormone levels are corrected by giving you thyroid hormone, you'd experience profound correction of these phenomena.

That's what I'm seeing with vitamin D: restoration of this hormone to normal blood levels (25-OH-vitamin D3 50 ng/ml) yields profound changes in the body.

If there's one thing that I've come across lately that packs extraordinary potential to help us in reducing heart scan scores, it's the vitamin--sorry, the hormone--cholecalciferol, or D3.

Heart scan curiosities 3

28. December 2006 William Davis (0)

Note the shape of the chest in this 64-year old man. The front of his chest (upper portion of scan) is concave. In other words, if you were looking at this man (shirtless, of course) face to face, his chest would bow inward, rather than the usual outward configuration. The official name for this is "pectus excavatum".





Compare this to the normal chest in the second image, in which the chest is convex. Face to face, the chest would bow slightly outward.















What does it matter? The pectus excavatum in and of itself has no importance, just a curiousity. (I personally find this surprising, given the fact that the heart actually appears squashed by the sternum, or chest wall.) However, it is commonly associated with a "floppy" mitral valve (also called mitral valve prolapse), a common congenital disorder of the mitral valve often accompanied by a slender build, loose joints, and even a nervous disposition. Occasionally, in its more severe forms, the aorta is also enlarged. (This man's aorta is not enlarged.)

So, while we can't actually visualize the mitral valve by a CT heart scan, we can surmise that he likely has a floppy mitral valve, is slender, is probably a nervous sort, and has long limbs with loose joints. He probably required braces as a child, since many people have a phenemenon of "crowded teeth". The roof of his mouth, or hard palate, probably unusually high up in the mouth. He probably has a "weak chin", meaning a less prominent protuberance of his chin. His fingers and toes are likely unusually long and slender.

It could mean that some attention and exploration of how floppy his mitral valve might be could be useful, e.g., an ultrasound or echocardiogram. He might even require oral antibiotics at the time of any oral or some gastrointestinal procedures, since floppy valve are more susceptible to blood infections when potentially "dirty" orifices are instrumented.

All that from a heart scan!

Gratitude

24. December 2006 William Davis (2)
The holidays and the end of the year may be a good time to reflect on how grateful we should be for having the freedom to discuss the ideas we share on this Blog, the Track Your Plaque website, online and offline.

Although I rant and rave against the status quo in heart disease, the shameful profiteering of my colleagues and hospitals, the cut-throat marketing practices of drug and device manufacturers, I am truly grateful that, in the U.S., I have the extraordinary freedom to say these things. You have the freedom to agree or disagree and none of us pays a price for truth.

I've been reflecting myself a great deal on this idea of happiness and gratitude being a critical component of coronary plaque regression and dropping your heart scan score. (See The Heart Scan Blog from earlier this week.) The more I think about this, the more I think that it is indeed true: Harboring anger and resentment, regrets, irritability, all those petty emotions that most of us know are not good for us, erode our chances for success in dropping your heart scan score.

We could rationalize it this way: Anger and other negative emotions are adrenaline-driven states, also characterized by activation of the "sympathetic" nervous system. (Despite its name, the sympathetic system is not sympathetic, as in compassionate; its the "fight-or-flight" activator that accelerates heart rate and blood pressure.)

Happiness, contentment, and gratitude are "parasympathetic" states characterized by slower heart rates, deeper respiration, greater variation in beat-to-beat heart rates (a powerful predictor for health and the basis for the HeartMath program of Lew Childre), lower blood pressure, and even a subtle change in brain waves. In other words, happiness is not just a mental and emotional state, it is a constellation of physical phenomena.

Even though I pick on Dr. Dean Ornish for his stubborn adherence to the outdated low-fat mantra, I do agree with him on the value of happiness. His book, Love and Survival, articulates this concept. Ornish has even said on several occasions that it wasn't the diet that was most important but the connection and warmth that was created by the comraderie created by participation in the Ornish Program group sessions.

I am personally grateful that the concepts I promote are gaining a following and that I can say so without fear of prosecution. I am grateful that Track Your Plaque followers are not just sharing our concepts, but obtaining genuine and powerful health advice that will help keep them home and healthy, away from hospitals, procedures, and the dangers of heart disease.

I hope you share in my gratitude and are thankful for all the truly wonderful things that surround us. I wish you all a wonderful holiday and long, healthy life filled with gratitude.

A Track Your Plaque failure

23. December 2006 William Davis (0)
We recently had a man suffer a heart attack after beginning the program. Let me tell you the details.

Jerry's heart scan score 781, age 53. Multiple lipoprotein abnormalities: HDL 32 mg/dl, triglycerides 279 mg/dl, nearly all of his LDL was in small particles with an "effective" LDL (LDL particle number), and very high IDL. So Jerry added fish oil 6000 mg per day, niacin, and vitamin D to the statin drug prescribed by his primary physician. Jerry added oat bran, ground flaxseed, and tried to eat fish at least once per week.

However, Jerry continued to smoke. He'd smoked for 40 years (!), up to 2 packs per day, and just reasoned that it was too late to quit. He also continued to indulge in the packaged, processed foods that were part of his convenience story business.

Jerry's stress test was normal--no chest pain, normal EKG, normal images of blood flow, though he was somewhat breathless, likely from his lung disease from smoking.

Two months into his program, he abruptly experienced severe crushing pain in his chest. Because he was traveling, he ended up in a small local hospital. A failed angioplasty led to urgent coronary bypass surgery.

Jerry's alive. Now he's a non-smoker. He's got the pursed lips and peculiar breathing pattern that smokers get, but he's breathing.

Lesson: In the face of the most powerful program for heart disease known, it can still be overpowered by Twinkies, Hoho's, pretzels, chips--and cigarettes.

The new year is approaching. Be grateful for another year of healthy life and commit to a new year of even greater health. If you're a smoker, there's no choice: you've got to quit.

Are you more like a dog or a rabbit?

20. December 2006 William Davis (11)
Dr. William Roberts, editor of the American Journal of Cardiology and cardiovascular pathologist, is a perennial source of clever ideas on heart disease.
In a recent editorial, Dr. Roberts comments:








"Because humans get atherosclerosis, and atherosclerosis is a disease only of herbivorers, humans also must be herbivores. Most humans, of course, eat flesh, but that act does not make us carnivores. Carnivores and herbivores have different characteristics. (1) The teeth of carnivores are sharp; those of herbivores, flat (humans have some sharp teeth but most are flat for grinding the fruits, vegetables, and grains we are built to eat). (2) The intestinal tract of carnivores is short (about 3 times body length); that of herbivores, long (about 12 times body length). (Since I am 6 feet tall my intestinal tract should be about 60 feet long. As a consequence, if I eat bovine muscle [steak], it could take 5 days to course through those 20 yards.) (3) Body cooling for carnivores is done by panting because they have no ability to seat; although herbivores also can pant, they cool their bodies mainly by sweating. (4) Drinking fluids is by lapping them for the carnivore; it is by sipping them for the herbivore. (5) Vitamin C is made by the carnivore's own body; herbivores obtain their ascorbic acid only from their diet. Thus, although most human beings think we are carnivores or at least conduct their lives as if we were, basically humans are herbivores. If we could decrease our flesh intake to as few as 5 to 7 meals a week our health would improve substantially."



You can always count on Dr. Bill Roberts to come up with some clever observations.

I think he's right. Some of the most unhealthy people I've known have been serious meat eaters. Most of the vegetarians have been among the healthiest. (I say most because if a vegetarian still indulges in plenty of junk foods like chips, crackers, breakfast cereals, breads, etc., then they can be every bit as unhealthy as a meat eater.)

Should you become a vegetarian to gain control over coronary plaque and other aspects of health? I don't believe you have to. However, modern livestock raising practices have substantially modified the composition of meats. A steak in 2006, for instance, is not the same thing as a steak in 1896. The saturated and monounsaturated fat content are different, the pattern of fat "marbling" is different, the lean protein content is different. Meat is less healthy today than 100 years ago.

Take a lesson from Dr. Roberts' tongue-in-cheek but nonetheless provocative thoughts. Pardon me while I chew on some carrots.