Stents, defibrillators, and other profit-making opportunities

As a practicing cardiologst, every day I receive a dozen or more magazines or newspapers targeting practicing physicians, not to mention the hundreds of letters, postcards, invitations to "talks", etc. that I receive. All of these materials share one common goal: To get the practicing cardiologist/physician to insert more of a manufacturer's stents, defibrillators, prescribe more of their drugs, etc.

This is a highly effective and profitable area. Pfizer's Lipitor, for instance, generated $12.2 billion just last year alone. This kind of money will fund an extraordinary amount of marketing.

I'm on the www.heart.org mailing list, a website for cardiologists. I'd estimate that 90% or more of their content is device-related: discussions of situations in which to insert stents, the expanding world of implantable devices, the ups and downs of various drugs. Rarely are discussions of healthy lifestyles, exercise, nutritional supplements, part of the dialogue.

How can you protect yourself from the brainwashed physician, flooded with visions of all the devices he can put in you, all the drugs that can "cure" your disease? Simple: information. Be better informed. Ask pointed questions. The idiotic lay press tells you to ask a doctor about his education. That's not generally the problem. Some of the best educated doc's I know are also the most flagrantly guilty of profiteering medicine.

Ask your doctor about his/her philosphy about the use of medications, devices, etc. If their word is God, take it or leave it, run the other way.

Will radiation kill you?

Several people have asked me lately if radiation is truly dangerous. These conversations were sparked by an editorial comment made on a column I wrote for Life Extension Magazine's April, 2006 issue on "Three ways to detect hidden heart disease".

Among the methods that were discussed in this piece was, of course, CT heart scanning. Anyone who is involved with CT heart scans Quickly recognizes the spectacular power of this test to uncover hidden, unsuspected heart disease, literally within seconds. In 2006, there's really nothing like it for the every day person to have hidden heart disease detected and precisely quantified.

Yet, the "rebuttal" to my article claimed that the broad use of heart scans was only my personal view and that, in truth, radiation kills people.

NONSENSE! If an ovarian cancer is discovered by a CT scan of the abdomen, is that unwise use of radiation? If pneumonia or lung cancer is discovered on a chest x-ray with minimal radiation exposure, have we performed a disservice. Of course not. In fact, these are often lifesaving applications of radiation.

Can radiation be used unwisely with excessive exposure? Of course. The 64 slice CT angiograms are just an example of this. Dr. Mehmet Oz announced on Oprah recently that this was a test to be used for broad screening of women for heart disease. This is wrong. The radiation required for a full 64 slice CT angiogram test is truly excessive for a screening application. You wouln't want to get breast cancer from your mammogram, would you? The radiation from a 64-slice CT angiogram is similar to that of a heart catheterization in the hospital--too much for screening. This is not to be confused with a CT heart scan for a calcium score performed on a 64 slice device. I think this can be performed with acceptable radiation exposure.

Think about what would happen, for instance, if you had your heart disease undetected, had a heart attack, and went to the hospital? During your hospitalization, you'd likely get five chest x-rays, a heart catheterization, perhaps one or more nuclear imaging tests, maybe even a full CT scan (with far more radiation than a screening heart scan). The amount of radiation of a heart scan is trivial compared to what you obtain in a hospital.

So take it all in perspective. The low level of radiation required for a simple heart scan (not an angiogram) does not by itself substantially add to your lifetime risk of radiation exposure. It may, in fact, save your life or reduce your life long exposure to radiation.

Are you using bogus supplements?

I consider nutritional supplements an important, many times a critical,part of a coronary plaque control program.

But use the wrong brand or use it in the wrong way, and you can obtain no benefit. Occasionally, you can even suffer adverse effects.

Take coenzyme Q10, for instance. (Track Your Plaque Members: A full, in-depth Special Report on coenzyme Q10 will be on the website in the next couple of weeks.) Take the wrong brand to minimize the likelihood of statin-related muscle aches, and you may find taking Lipitor, Zocor, Crestor, etc. intolerable or impossible. However, take a 100 mg preparation from a trusted manufacturer in an oil-based capsule, and you are far more likely to avoid the inevitable muscle aches. (Though, of course, consult with your doctor, for all it's worth, if you develop muscle aches on any of these prescription agents.)

Unfortunately, you and I often don't truly know for a fact if a bottle from the shelf of a health food store or drugstore is accurately labeled, pure, free of contaminants, and efficacious.

One really great service for people serious about supplements is the www.consumerlab.com website. They are a membership website (with dues very reasonable) started by a physician interested in ensuring supplement quality. Consumer Lab tests nutritional supplements to determine whether it 1) contains what the label claims, and 2) is free of contamination. (I have no reason to pitch this or any other site; it's just a great service.) They recently found a supplement with Dr. Andrew Weil's name on it to have excess quantities of lead!

What Consumer Lab does not do is determine efficacy. In other words, they do a responsible job of reporting on what clinical studies have been performed to support the use of a specific supplement. However, true claims of efficacy of supplement X to treat symptom or disease Y can only come with FDA approval. Supplements rarely will be put through the financial rigors of this process.

If you're not a serious supplement user, but just need a reliable source, we've had good experiences with:

--GNC--the national chain
--Vitamin Shoppe--also a national chain
--www.lifeextension.com or www.lef.org--A great and low-priced source, but they do charge a $75 annual membership that comes with a subscription to their magazine, Life Extension (which I frequently write for) and several free supplements that you may or may not need. Again, I'm not pitching them; they are simply a good source.
--Solgar--a major manufacturer
--Vitamin World
--Nature's Bounty
--Sundown

There are many others, as well. Unfortunately, it's only the occasional manufacturer or distributor that permits unnacceptable contamination with lead or other poisons, or inaccurately labels their supplement (e.g., contains 1000 mg of glucosamine when it really contains 200 mg). I have not come across any manufacturer/distributor who has systemtically marketed uniformly bad products.

It really helps to have someone to lean on

Among my patients are several husband and wife teams, both of whom have heart disease by some measure. Several couples, for instance, consist of a huband who's received a stent, survived a heart attack, or has some other scar of the conventional approach. The wives generally have a substantial heart scan score in the several hundred range.

There are a few couples for which the roles are reversed: wife with bypass, heart attack, etc. and husband with a substantial quantity of coronary plaque by CT heart scan.

From them all, however, I've learned the power of teamwork. When both wife and husband (or even "significant other") are committed to the effort of controlling or reversing heart disease risk, the likelihood of success is magnified many-fold. Everything is easier: shopping for and choosing foods, incorporating supplements in the budget, taking vacations with a healthy focus, following through and sticking with your program.

Several of the couples have succeeded in obtaining regression of plaque for both man and woman. Both have reduced their heart scan scores and, as a result, dramatically reduced the potential for future heart attack and procedures.

Unfortunately, I will also see the opposite situation: One spouse committed to the program but the other indifferent. They may say such things as "You can't control what happens in the future." Or, "There's no way you can get rid of risk for heart disease. My doctor says it's hereditary." Or, "I've eaten this way since I was a kid. I'm not changing now for you or for anybody else."

Such negative commentary can't help but erode your commitment to health. Most of us recognize these sorts of comments as self-fulfulling and self-defeating.

What should you do if you have an unsupportive partner? Not easy. But it really can help to seek out a supportive partner, whether it's a friend, relative, or other significant person in your life. Of course, not everybody can find such a person. Perhaps that's another way our program can help.

I'd like to hear from anyone who does obtain substantial support of someone close, or if you are struggling to do so.

Five foods that can booby trap your heart disease prevention program

There are several foods that commonly come up on people's lists of habitual foods that are truly undesirable for a heart disease prevention program. Curiously, people choose these foods because of the mis-perception that they are healthy. My patients are often shocked when I tell them that they are not healthy and are, in fact, detrimental to their program.

I'm not talking about foods that are obviously unhealthy. You know these: fried foods, greasy cheeseburgers, French fries, bacon, sausage, etc. Nearly everyone knows that the high saturated fat content, low fiber, and low nutritional value of these foods are behind heart disease, hypertension, and a variety of cancers.

I'm talking about foods that people say they eat because they view them as healthy--but they're not.

Here's the list:

1) Low-fat or non-fat salad dressings--Virtually all brands we've examined have high-fructose corn syrup as one the main ingredients. What does high fructose corn syrup do? Triggers sugar cravings, makes your triglycerides skyrocket (causing formation of abnormal lipoproteins like small LDL), and causes diabetes. The average American now ingests nearly 80 lbs of this evil sweetener per year. You're far better off with olive, canol, grapeseed, or flaxseed based salad dressings.

2) Breakfast cereals--If you've been following these discussions, you know that the majority of breakfast cereals are sugar. They may not actually contain sugar, but they contain ingredients that are converted to sugar in your body. They may be cleverly disguised as healthy--Raisin Bran, Shredded Wheat, etc.

3) Pretzels--"A low-fat snack". That's right. A low-fat snack that raises blood sugar like eating table sugar from the bowl.

4) Margarine--Forget this silly argument about which is worse, butter or margarine. Which is worse, strychnine or lead? Both are poisons to the human body. Who cares which is worse? Fortunately, there are now healthy "margarines" like Smart Balance and Benecol that lack the saturated fat or hydrogenated fat of either.

4) Bananas--Bananas are not all that intrinsically unhealthy. The problem is that people will say to me, "Oh sure, I eat fruit. Two bananas a day." What I hear is "I don't really eat fruit with high nutrient value, fiber, and reduced sugar release. I reach for only bananas which yield extreme sugar rises in my blood and are low fiber." Aren't they high in potassium? Yes, but there are better sources. Cut back if you are a banana freak.


Why the mis-perceptions? A holdover from the low-fat diet days and marketing from food manufacturers are the principal reasons. Of course, foods are meant to be enjoyed, but be informed about it. Choose foods for the right reasons, not because of some cleverly-crafted marketing campaign.

Breakfast of champions?

I spend time every day educating or reminding patients that breakfast cereals are not health foods.

I see jaws drop in shock when I tell them that, in my opinion and despite the marketing claims, Cheerios, Raisin Bran, Shredded Wheat, and the like do not yield health benefits. In fact, they do the the opposite: dramatically raise blood sugar and trigger an adverse cascade of events that eventually leads to diabetes and heart disease.

Why the health claims in advertising? Because these products contain insoluble fiber, the sort that makes your bowels regular. Yes, your bowels are important to health, too. But the benefits end there.

Breakfast cereals are a highly refined, processed food that are not good for your plaque control program. What they are is a highly profitable, multi-billion dollar business, deeply entrenched in American culture ("They'rrrre grrrrrreat!"--Tony the Tiger; "There's a whole scoop of raisins in every box of Post Raisin Bran!" Bet you remember them all.)

I find it particularly upsetting when I see the stamp of approval from the American Heart Association on some products. Gee, if the Heart Association says it's good for you, it must be true! Don't you believe it. The American Heart Association relies on corporate donations, just like any other charity.

If you must eat breakfast cereals, refer to www.glycemicindex.com for a full database of glycemic indexes. You can look up a specific product and it will list its glycemic index, or sugar-releasing properties. You should try to keep glycemic index of the foods you choose below 50.

For a revealing discussion of the influence of food marketers on our perceptions of food, see Track Your Plaque nutrition expert, Gay Riley's discussion The Marketing of Food and Diets in America at her website, www.netnutritionist.com.

In heart disease prevention, shoot for perfection

It really struck me today that it's the people who've chosen to compromise their prevention program who end up with trouble--heart procedures, heart attack, even heart failure.

Take Bob, for example. Bob is 73 years old and had a bypass operation in 2000. The procedure went well and Bob enjoyed 6 years of seemingly trouble-free life. Bob had a seriously low HDL cholesterol for which he as taken a modest dose of niacin, but was unwilling to do much more. His HDL cholesterol was thererefore "stalled" at around 40 mg. (We aim for 60 mg or greater.) We talked repeatedly about the options for increasing HDL but Bob was content with his results. After all, since his bypass operation, he'd felt well and could do all he wanted without physical limitation.

But Bob underwent a stress test for surveillance purposes (which we routinely do 5 or more years after bypass surgery). The test was markedly abnormal with two major areas of poor blood flow to his heart (signalling potential heart attack in future). Bob ended up getting 5 stents to salvage two bypass grafts, both of which showed signs of substantial degeneration.

I've seen this scenario repeatedly: A person is unwilling to go the extra mile to obtain perfection in lipid/lipoprotein patterns, lifestyle changes, and taking the basic, required supplements. Compromises eventually catch up to you in the form of another heart attack, more procedures, heart failure, physical disability, even death.

The message: Don't draw compromises in heart disease prevention. Coronary plaque is a chronic process. It will take advantage of you if you ever let your guard down.

The epidemic of small LDL

Of the patients I saw in my office yesterday, virtually EVERYONE had small LDL.

Small LDL is emerging as an extraordinarily prevalent lipoprotein pattern that drives coronary plaque growth. Previous estimates have put small LDL as affecting only 20-30% of people with coronary disease. However, in my experience in the last few years, I would estimate that greater than 80% of people with measurable coronary plaque have small LDL.

If you have a heart scan score >zero, chances are you have it, too.

I call small LDL a "modern" disease because it has skyrocketed in prevalence recently because of the great surge in inactivity in Americans.

When's the last time you walked to the grocery store and back, lugging two bags of groceries? How many years has it been since you've push-mowed your lawn? All the small conveniences of life have permeated further and further into our activities. Most of us spend the great majority of our day right where you are now--on your duff.

On the bright side, small LDL in most people is reducable by simply getting up and going. But the old teaching of 30 minutes of activity per day is now outdated. This was true when the other hours of your life included physical activities, like housework or a moderately active job. However, if the other 23 1/2 hours of your day are sedentary, then 30 minutes a day won't do it. An hour or more of activity, whether exercise or physical labor of some variety will get you better small LDL-suppressing results.

For most people with small LDL, fish oil and niacin are also necessary to fully suppress small LDL to the Track Your Plaque goal of <10 mg/dl.

A great discussion on vitamin D

If you need better convincing that vitamin D is among the most underappreciated but crucial vitamins for health, see Russell Martin's review of vitamin D and its role in cancer prevention. You'll find it in March, 2006 Life Extension Magazine or their www.LEF.org website at:

http://search.lef.org/cgi-src-bin/MsmGo.exe?grab_id=0&page_id=1308&query=vitamin%20d&hiword=VITAM%20VITAMER%20VITAMERS%20VITAMI%20VITAMINA%20VITAMINAS%20VITAMINC%20VITAMIND%20VITAMINE%20VITAMINEN%20VITAMINES%20VITAMINIC%20VITAMINK%20VITAMINS%20d%20vitamin%20

Our preliminary experience over the past year suggests that vitamin D may be the crucial missing link in many people's plaque control program. We've had a handful of people who, despite an otherwise perfect program (LDL<60, HDL>60, etc.; vigorous exercise, healthy food selection, etc.--I mean perfect)continued to show plaque growth. The rate of growth was slower than the natural expected rate of 30% per year, but still frightening rates of 14-18% per year--until we added vitamin D. All of a sudden, we saw dramatic regression of 7-25% in 6 months to a year.

This does not mean that vitamin D all by itself regresses plaque. I believe it means that vitamin D exerts a "permissive" effect, allowing all the other treatments (fish oil, LDL reduction, HDL raising, correction of small LDL, etc.) to exert their full benefit. So please don't stop everything and just take D. This will not work. However, adding vitamin D to your program on top of the basic Track Your Plaque approach--that's the best way I know of.

MSNBC Report: We need more heart procedures!

A recent headline from MSNBC by Robert Bazell reads:

NEW YORK - Angioplasty, bypass surgery and cholesterol-lowering medications are among the many interventions that have brought a sharp decrease in heart disease deaths in recent years. But, as Dr. Sharon Hayes of the Mayo Clinic points out, there is one big problem.

“The death rates in women have not declined as much as they have in men,” she says.

The piece goes on to suggest that women are getting short-ended in the diagnosis of heart symptoms and heart attack. The solution: More testing to assess the need for procedures like bypass.

This is typical of the device and medication-dominated media consciousness: More procedures, more medication, more devices. Who's paying for advertising, after all? The money at stake is huge. But is this what you want?

Don't be swayed by media reporters with limited understanding of the real issues (at best), consciousness of who's paying for advertising (at worst). Yes, heart disese is often underestimated or misdiagnosed in women. The answer is better detection earlier in life followed by efforts to halt the process--effective, safe treatments for people's benefit, not just profit.

Do you eat wheat? I thought so.

I'm itching to say that face-to-face to anyone from the wheat industry--agribusiness, baking, retail distribution . . . anybody. Because it's obvious; it's written on the face . . . and belly, and brain, and knees, and hips. And I believe I will soon have the opportunity.

Taking such a controversial stand in my new book, Wheat Belly, i.e., that wheat products, whole or refined, have NO ROLE IN THE HUMAN DIET whatsoever, was bound to provoke criticism and counterattacks. The wheat world has already taken a blow to the chin with the growing popularity of the (misguided) gluten-free movement and they're going to have to get into the business of media damage control.

Take a look at this press release from the Grain Foods Foundation:

RIDGWAY, COLO. — The Grain Foods Foundation has unveiled plans to counter media publicity attracted by “Wheat Belly.”

“Mullen, working with key members of the Grain Foods Foundation’s scientific advisory board, is addressing ‘Wheat Belly’ through proactive media outreach and its ongoing rapid response program,” said Ashley Reynolds, a Mullen account executive. “In particular, the public relations team will be contacting health and nutrition reporters at print and on-line media outlets, as well as editors at major women’s magazines to influence any diet-related stories that may be published in the coming months.”

. . . Ms. Reynolds, a registered dietitian, noted the author relies on anecdotal observations rather than scientific studies; wheat elimination “means missing out on a wealth of essential nutrients;” six servings of grain-based foods are recommended daily in the Dietary Guidelines for Americans; healthy weight loss depends on energy balance rather than elimination of specific foods; and elimination of wheat products makes sense only for those with medical diagnoses such as celiac disease or gluten sensitivity.

She said the group will lean on its scientific advisory board members to “discredit the book and ensure our messages are backed by sound science. “


Here's some of their starting salvos on their Six Servings Blog.

This reminds me of the fight with Big Tobacco in the '70s: "No, sir, we in the tobacco industry know of no research demonstrating that smoking is bad for health," complete with shots of tobacco executives puffing away on cigarettes.

So brace yourself for a fight. These people are protecting a multi-billion dollar franchise, not to mention their livelihoods and incomes. It could get ugly.

Wheat Belly explodes on the scene!



Wheat Belly is finally available in Barnes and Noble and all major bookstores nationwide! Also available at Amazon. Electronic versions for Nook and Kindle, as well as an audio CD, will also be available.

The notion of Wheat Belly got its start right here on The Heart Scan Blog and the diet developed for the Track Your Plaque program to conquer heart disease and plaque.



Chapters in the book include:

Not Your Grandma's Muffins: The Creation of Modern Wheat
Whence and where did this familiar grain, 4 1/2-foot tall "amber waves of grain," become transformed into a 2-foot tall, high-yield genetically unique plant unfamiliar to humans? And why is this such a bad thing?

Cataracts, Wrinkles, and Dowager's Humps: Wheat and the Aging Process
If you thought that bagels and crackers are just about carbs, think again. Wheat consumption makes you age faster: cataracts, crow's feet, arthritis . . . you name it, wheat's been there, done that and brings you one step closer to the big nursing home in the sky with every bite.

My Particles are Bigger than Your Particles
Why consuming plenty of "healthy whole grains" is the path to heart disease and heart attack and why saying goodbye to them is among the most powerful strategies around for reduction or elimination of risk.

Hello, Intestine: It's Me, Wheat
No discussion of wheat is complete without talking about how celiac disease and other common intestinal ailments, like acid reflux and irritable bowel syndrome, fit into the broader concept of wheat elimination.

Here's a YouTube video introduction to the book and concept posted on the YouTube Wheat Belly Channel. Also, join the discussions on The Wheat Belly Blog and Facebook. Have that last bite of blueberry muffin, because I predict you won't be turning back!

Good fat, bad fat

No, this is not a discussion of monounsaturated versus hydroxgenated fat. This is about the relatively benign fat that accumulates on your hips, rear end, or arms--the "good"--versus the deep visceral fat that encircles your intestines, kidneys, liver, pancreas, and heart--the "bad."

And I'm not talking about what looks good or bad. We've all seen the unsightly flabby upper arms of an overweight woman or the cellulite on her bulging thighs. It might look awful but, metabolically speaking, it is benign.

It's that muffin top, love handle, or wheat belly that encircles the waist, a marker for underlying deep visceral fat, that:

--Increases release of inflammatory mediators/markers like tumor necrosis factor, leptin, interleukins, and c-reactive protein
--Is itself inflamed. When examined under a microscope, visceral fat is riddled with inflammatory white blood cells.
--Stops producing the protective hormone, adiponectin.
--Traffics in fatty acids that enter the bloodstream, resulting in greater resistance to insulin, fat deposition in the liver (fatty liver), and increases blood levels of triglycerides
--Predicts greater cardiovascular risk. A flood of recent studies (here's one) has demonstrated that larger quantities of pericardial fat (i.e., visceral fat encircling the heart, visible on a CT scan or echocardiogram) are associated with increased likelihood of coronary disease and cardiovascular risk.

You can even have excessive quantities of bad visceral fat without much in the way of fat elsewhere. You know the body shape: skinny face, skinny arms, skinny legs . . . protuberant, flaccid belly, the so-called "skinny obese" person.

Nobody knows why fat in visceral stores is so much more evil and disease-related than, say, wheat on your backside. While you may struggle to pull your spreading backside into your jeans, it's waist girth that is the problem. You need to lose it.

You could take vitamin D or . . .

You could take vitamin D and achieve a desirable blood level of 25-hydroxy vitamin D (I aim for 60-70 ng/ml), or you could:

--Take Actos to mimic the enhanced insulin sensitivity generated by vitamin D
--Take lisinopril to mimic the angiotensin-converting enzyme blocking, antihypertensive effect of vitamin D
--Take Fosamax or Boniva to mimic the bone density-increasing effect of vitamin D
--Take Celexa or other SSRI antidepressants to mimic the mood-elevating and winter "blues"-relieving effect of vitamin D
---Take Niaspan to mimic the HDL-increasing, small LDL-reducing effect of vitamin D
--Take naproxen to mimic the pain-relieving effect of vitamin D

So, given a choice, what do most doctors choose? Of course, they choose from the menu as presented by the sexy sales representative sitting in the office waiting room. These medications, of course, are among the top sellers in the drug world, taken by millions of Americans and not just one at a time, but several per person.

The Food and Nutrition Board of the Institute of Medicine, the panel of volunteers charged with drafting a Recommended Daily Allowance for vitamin D, says that you are already getting enough vitamin D, so don't bother taking any supplements and continue to wear your sunscreen. Wonder whose side they're on?

I continue to be impressed that many of the conditions that plague modern people are little more than deficiencies peculiar to modern life, such as vitamin D deficiency, or the result of the excesses of modern life, such as consumption of sucrose, fructose, corn, and "healthy whole grains."

I take 8000 units of gelcap vitamin D and haven't felt better.

More lipoproteins zero!

A few posts back, I talked about how more people are showing us zero lipoprotein(a) and zero small LDL. That was about 4 weeks ago. By then, I had seen 3 people with zero values on both.

Well, it's now up to 9 people: 9 people who have achieved zero lipoprotein(a) and zero small LDL. These are people who started with typical lipoprotein(a) values of 150-300 nmol/L and small LDL values of 1000-2000 nmol/L, both substantial.

I still don't know how many people or what percentage can expect to show such extravagant results. But the sharp increase over a relatively brief period of time is extremely encouraging!


Diet: One size does NOT fit all

Heart Scan Blog reader, Frustrated, posted this comment:

Dr. Davis,
I have spent the last 5 months eating a diet that completely eliminated all wheat products. It was very low carb, and consisted of relatively high protein (eggs, grass fed beef, grass fed raw cheese, oily fish, chicken), good level of olive oil, walnuts, fish oil (3 mg per day), raw vegetables, little bit of fruit. So I had good amount of monounsaturated fat as well as saturated fat from eggs and grass fed products.

My recent NMR showed:
LDL-p. 2,800
Small LDL particle 1700
Small HDL particle 20
HDL-C 40
LDL-C 114
Trigs. 224
Total chol 208

So I was disappointed. Where have I gone wrong? No wheat and sky-high LDL-p and 1700 small LDL particles.


This is indeed unusual. I see this perhaps 5 or 6 times over a year's time, while thousands of other people show the usual expected respone. I don't have Frustrated's lipoprotein panel prior to starting the diet, but I'll bet the starting panel was similar to this "after" panel.

The overwhelming majority of people who follow a diet like the one described--no wheat, limited carbohydrate, grass fed beef, fish, chicken, vegetables, limited fruit--obtain extravagant reductions in small LDL, increased HDL, and reduced triglycerides. So why did Frustrated end up with such disappointing results, values that potentially provide for high risk for heart disease?

There are several possibilities:

1) He/she is in the midst of substantial weight loss. When labs are drawn in the midst of weight loss, stored energy is being mobilized into the blood stream. This energy is mobilized as fatty acids and triglycerides which, upon entering the blood stream, cause increased triglycerides, reduced HDL, chaotic or unpredictable small LDL patterns, and increased blood sugar sufficient to be in the diabetic or pre-diabetic range. This all subsides and settles down to better values around 2 months after weight loss has plateaued.

2) Apo E4--If Frustrated has one or two apo E4 genes, then increased dietary fat will serve to exaggerate measures like small LDL despite the reduction in carbohydrates, LDL particle number, and triglycerides. This is a tough situation, since small LDL particles and high triglycerides signal carbohydrate sensitivity, while apo E4 makes this person, in effect, unable to deal with fats and dietary cholesterol. It gives me the creeps to talk about reducing fat intake, but this becomes necessary along with carbohydrate restriction, else statin drugs will come to the "rescue."

3) Apo E2 + Apo E4--It's possible that an apo E2 is present along with apo E4. Apo E2 makes this person extremely carbohydrate-sensitive and diabetes-prone with awful postprandial (after-meal) persistence of dietary byproducts, alongside the hyperabsorption of fats and dietary cholesterol from apo E4. This is a genuine nutritional rock and a hard place.

4) Other variants--There are probably a dozen or more other genetic variants, thankfully rare, such as apo B and apo C2 variants, that are not generally available for us to measure that could influence Frustrated's response.

5) The low-carb diet is not truly low-carb--Frustrated sounds like a pretty sharp cookie. But it's not uncommon for someone to overlook a substantial source of carbohydrate exposure that triggers these patterns. Fruit is a very common tripping point, since people generally regard unlimited fruit as a healthy thing. This does not seem to be Frustrated's problem. Others indulge in quinoa, sweet potatoes, millet or other carbohydrate sources that look and sound healthy but, in sufficient quantities, can still trigger this pattern.

6) Other--Hypothyroidism, kidney disease, nephrotic syndrome, hypercortisolism and some other relatively rare conditions are worth considering if none of the above apply.

Anyway, that's the list I use when this peculiar situation arises. If obvious weight loss is not the culprit, the next step is apo E testing. However, the wrong response is to reject the low-carbohydrate notion altogether and just limit fat, since this typically leads to uncontrolled small LDL, high triglycerides, and diabetes. It can often mean limiting carbohydrates while also limiting fats. Just as with the combination of apo E4 with Lipoprotein(a), I lump many of these patterns into the emerging world of genetic incompatibilities, genetic traits that code for incompatible metabolic phenomena.


Why ATP-3 is B--- S---

A Heart Scan Blog reader posted the link to this very excellent presentation by Dr. David Diamond, a neuroscientist at the University of South Florida.

ATP-3, or Adult Treatment Panel-3, is the set of cholesterol treatment guidelines as established by the National Cholesterol Education Panel, the guidelines used by practicing physicians nationwide. They are also the metric by which the "quality" of care is being judged by agencies like Medicare, health insurers, and other parties interested in policing healthcare. Dr. Diamond ably recounts how we ended up in this mess, the conflagration of "cut your fat, reduce cholesterol, and take a statin drug."

I was very impressed that, in his closing comments, he briefly discusses the pivotal role of glycation in heart disease causation. You will see in coming conversations how important an understanding of glycation is to create a healthy diet and lifestyle.

How far wrong can cholesterol be?

Conventional thinking is that high LDL cholesterol causes heart disease. In this line of thinking, reducing cholesterol by cutting fat and taking statin drugs thereby reduces or eliminates risk for heart disease.

Here's an (extreme) example of just how far wrong this simpleminded way of thinking can take you. At age 63, Michael had been told for the last 20 years that he was in great health, including "perfect" cholesterol values of LDL 73 mg/dl, HDL 61 mg/dl, triglycerides 102 mg/dl, total cholesterol 144 mg/dl. "Your [total] cholesterol is way below 200. You're in great shape!" his doctor told him.

Being skeptical because of the heart disease in his family, had a CT heart scan. His coronary calcium score: 4390. Needless to say, this is high . . . extremely high.

Extremely high coronary calcium scores like this carry high likelihood of death and heart attack, as high as 15-20% per year. So Michael was on borrowed time. It was damn lucky he hadn't yet experienced any cardiovascular events.

That's when Michael found our Track Your Plaque program that showed him how to 1) identify the causes of the extensive coronary atherosclerosis signified by his high calcium score, then 2) correct the causes.

The solutions, Michael learned, are relatively simple:

--Omega-3 fatty acid supplementation at a dose sufficient to yield substantial reductions in heart attack.
--"Normalization" of vitamin D blood levels (We aim for a 25-hydroxy vitamin D level of 60-70 ng/ml)
--Iodine supplementation and thyroid normalization
--A diet in which all wheat products are eliminated--whole wheat, white, it makes no difference--followed by carbohydrate restriction.
--Identification and correction of all hidden causes of coronary plaque such as small LDL particles and lipoprotein(a)

Yes, indeed: The information and online tools for health can handily exceed the limited "wisdom" dispensed by John Q. Primary Care doctor.

The best artificial sweeteners

Our new recipes, such as New York Style Cheesecake and Chocolate Coconut Bread, are wheat-free and low- or no-carbohydrate. They fit perfectly into the New Track Your Plaque Diet for gaining control over coronary atherosclerotic plaque, not to mention diabetes, pre-diabetes, hypertension, small LDL particles, high triglycerides, high inflammation (c-reactive protein) and other distortions of metabolism.

However, there's one compromise: We include use of non-nutritive sweeteners. It's therefore important to know that artificial sweeteners are not all created equal.

One common tripping point: maltodextrin.

Maltodextrin is composed of polymers (repeating subunits) of glucose, as few as 3 or as many as 20 or more glucose subunits. So maltodextrin is glucose sugar. While it lacks the especially destructive pentose sugar, fructose, maltodextrin is metabolized to glucose and thereby increases blood sugar substantially.

Many artificial sweeteners are bulked up with maltodextrin. For instance, granulated Splenda and Stevia in the Raw, two sweeteners billed as low-calorie and sugar-free that is used on a cup-for-cup basis like sugar, are primarily maltodextrin--with only a teensy bit of Splenda or stevia.

The best artificial sweeteners, i.e., the most benign without a load of maltodextrin, are:

Liquid stevia--Just the extract from stevia leaves and water. It can be a bit pricey, e.g., $10 for a 2 oz bottle, but a little goes a long way.

Truvia--While I'm not too fond of the manufacturer (Cargill), I believe that Truvia is among the better sweeteners around. It is a mixture of the natural sugar, erythritol, that generates little to no blood sugar effects and rebiana (rebaudioside), an isolate of stevia. Some people aren't too fond of the mild menthol-like cooling effect of the erythritol nor the slight aftertaste. I find it works pretty well in most recipes.

Be aware that, no matter which artificial sweetener you use, it has the potential to stimulate appetite. I therefore like to not eat foods sweetened with liquid stevia or Truvia in isolation but as part of a meal. That way, any appetite stimulation that results is substantially quelled by the proteins and fats ingested.

Sugar Nation



Former Men's Health editor, Jeff O'Connell, has just released his new book, Sugar Nation.

Back in 2009, Jeff contacted me to obtain some background insights into diabetes and its relationship with diet. He recently sent me a copy of his new book that contains some brief quotes from me.

Jeff is a writer, not a physician nor scientist. But I think that you will find his grasp of diabetes and the nutritional and lifestyle events that led him there far exceed the insights held by most practicing physicians. Like many of us, Jeff discovered how to find his way back from pre-diabetes through lessons he had to learn on his own, but not from his doctor.

Jeff tells this story as reporter, son of an estranged diabetic father with whom he reconnects as he approaches the end of his life, and as fellow sufferer of the pre-diabetic/diabetic mess that modern habits and "official" dietary advice have given us. Jeff's book is worth a read to see yet another dimension of the human stories that are emerging from this incredible nutritional tangle we find ourselves in.

Here's a unique YouTube video about Jeff's story.

Grasscutting, fertilizer, and healthcare

A guy named Jeff, a 60-something, taciturn, "How 'bout dem Brewers?" kind of guy, cuts my grass.

Once a week, Jeff drives over his rust-rimmed 1994 Chevy pickup and trailer, unloads his ride mower, and cuts the grass. For his 40 minutes of work, I pay him $35.

For $35, all he does is cut the grass--no trimming, no picking up debris, no working in the garden, no fertilizing, no weeding. Just cutting the grass. Occasionally, Jeff has proven to be a useful resource for peculiar problems. Last year, I had a drainage problem that he helped solve and two years ago he helped diagnose a tree disease that was killing a tree in the backyard; it's now recovered.

To save money, and because I like to work in the yard, I do the rest. I trim the edges, I fertilize the grass, plant new flowers and trees, fix damaged areas, trim wild branches.

In my view, my relationship with Jeff, a limited, as-needed relationship, in which I ask him to help with specific issues but I manage the rest myself, is how I believe that healthcare should also be conducted.

Your doctor should be like Jeff: Perhaps not taciturn, but an as-needed resource available while you do much of the work.

My simple relationship with Jeff is, I believe, the healthcare model of the future. You manage your own cholesterol issues, your own basic thyroid issues, supplement and monitor your vitamin D levels, use diet to suit your needs, order blood tests when necessary, even obtain basic imaging tests like heart scans, carotid ultrasound, bone density testing. Your doctor is a resource, near by when and if you need him or her: guidance when needed, an occasional review of what you are doing, someone to consult when you fracture an ankle.

What your doctor is NOT is a paternal, "do what I say, I'm the doctor," or a "You need these tests whether you like it or not" holder of your health fate.

It is a model of healthcare that will evolve over the next 20-30 years, only in its infancy now.

While we started Track Your Plaque as just a resource for in-depth information on prevention and reversal of coronary heart disease, I now see it as something much greater: a prototype for the emerging concept of self-directed health.

Enough for now. I've got some tomatoes to pick.

Iodine deficiency is REAL

Like many health-conscious people, Kurt avoids salt. In fact, he has assiduously avoided salt ever since his heart attack back in 1995.

Lately, Kurt had become tired, often for little or no reason. His thyroid panel:

TSH 4.2 mIU/L (0.27-4.20)
Free T3 1.74 pg/ml (2.50-4.30)
Free T4 1.05 ng/dl (0.9-1.7)

Kurt's TSH of 4.2 mIU/L is sufficient to increase LDL cholesterol by 20-30% and increase the (relative) risk for heart attack 3-fold.

Kurt's thyroid was also palpably enlarged. While it was just barely visible--just a minor bulge in the neck (in the shape of a bowtie), it could be clearly felt when I examined him.

I asked Kurt to add 500 mcg of iodine every day. Three months later, another thyroid panel showed:

TSH 0.14 mIU/L (0.27-4.20)
Free T3 2.50 pg/ml (2.50-4.30)
Free T4 1.1 ng/dl (0.9-1.7)

Kurt's thyroid function normalized to nearly ideal levels just with iodine replacement. (The free T3, while improved, remains low; an issue for another day!)

I see this response with some frequency: low-grade goiter and apparent hypothyroidism (low thyroid function) that responds, at least partially, to iodine replacement. In Kurt's case, iodine replacement alone normalized his thyroid measures completely.

With improved thyroid measures, Kurt also felt better with renewed energy and a 22 mg/dl reduction in LDL cholesterol.

Make no mistake: Iodine deficiency is real. While most of my colleagues have dismissed iodine deficiency as a relic of the early 20th century and third world countries, you can also find it in your neighborhood.

Fish oil for $780 per bottle

At prevailing pharmacy prices, one capsule of prescription Lovaza fish oil costs $4.33 each.

Yes, you heard right: $4.33 per capsule.

What do you get for $4.33 per capsule? By omega-3 fatty acid content, you get 842 mg EPA + DHA per capsule.

I can also go to Sam's Club and buy a bottle of their Triple-Strength fish oil with 900 mg omega-3 fatty acids per capsule at $18.99 per bottle of 180 capsules. That comes to 10.5 cents per capsule. That puts the price of fish oil from Sam's Club at 97.6% less cost compared to Lovaza for an equivalent quantity of omega-3 fatty acids.

What if we repriced Sam's Club's Triple-Strength and brought it "in line" with what we pay for Lovaza? That would put the value of one bottle of Sam's Club Triple-Strength fish oil at $780 per bottle.

I take patients off Lovaza every chance I get.

Organic really IS better

If you have any doubts about the value of organic foods vs. conventionally-grown foods, then take a look at the findings from a USDA--Yes, USDA--sponsored study.

In this study, the nutritional content of organic vs. conventionally-grown blueberries were compared. Ironically, these observations come from the USDA's Genetic Improvement of Fruits and Vegetables Laboratory of the Produce Quality and Safety Laboratory.

Their findings (all values expressed as weight per 100 grams fresh weight blueberries, or a bit less than 1/4 cup):


Total phenol content (e.g, flavonoids):

Organic: 319.3 mg
Conventional: 190.3 mg

Organic blueberries had 68% greater phenol content.


Total anthocyanins (an important class of flavonoids):

Organic: 131.2 mg
Conventional: 82.4 mg

Organic blueberries had 59% greater anthocyanin content.


Antioxidant capacity (ORAC):

Organic: 46.14 mg
Conventional: 30.8

Organic blueberries had 50% greater antioxidant capacity.


Flavonoids suspected to carry unusually potent health effects--malvidin, delphinidin, myricetin, and quercetin--were all contained in greater proportions in the organically-grown blueberries, also. These flavonoids are demonstrating pharmacologic-level health effects in preliminary studies.

Why a genetics laboratory? After all , the study findings came out heavily in favor of non-genetic, organic farming methods of growing produce. It certainly must have at least given pause to the vocal group within agriculture and the USDA that have long argued that organic produce is no different. I suspect that the laboratory will now try to recreate the nutritional value of organic through genetic manipulation of cultivars grown using conventional methods.

Regardless of the motivations behind the study, we see that there is no comparison: organic blueberries are superior in nutritional value to those grown with conventional pesticides and herbicides. While the study addressed only blueberries, the dramatic difference makes it likely that similar differences exist in other fruits and vegetables.

Coming on the Track Your Plaque website: An in-depth Special Report on the health effects of anthocyanins.

Do you really need calcium?

Why are we advised to take calcium supplements?

Men and women are advised to take calcium because it has been shown to reduce blood pressure modestly. Women, in particular, can stall the deterioration of bone strength (mineralization) by taking calcium supplements, 1200-1300 mg per day, and eating calcium-rich foods like dairy products.

Is that all true?

It is true insofar as we remain vitamin D deficient. A funny thing happens when you fully replete vitamin D: Intestinal absorption of calcium as much as quadruples. That means your body will efficiently absorb the calcium in broccoli and spinach.

Is it still necessary to force-feed your body megadoses of calcium once vitamin D has been repleted? I don’t think so.

While the evidence is indirect, several observations point towards the lack of necessity of calcium once vitamin D is addressed.
For instance:

Women who take calcium, 1200 mg per day, with vitamin D, 800 units per day, double their five-year risk for heart attack, according to a New Zealand study.

Men who take calcium, 1200 mg per day, with vitamin D, 800 units per day, also may substantially increase heart attack risk.

Bone density increases more with vitamin D than with calcium. Calcium may not even be necessary to increase bone mineralization, since there are data to suggest that vitamin D can accomplish this by itself.

Calcium suppresses parathyroid hormone, PTH. That is, in fact, how calcium stalls (usually does not reverse) bone mineral loss-not by adding calcium to bone, but by suppressing PTH release. (PTH causes bone demineralization.) Vitamin D suppresses PTH to a far greater degree than calcium.

What is needed is a broad reconsideration of the advice everyone is getting to take calcium. In an age when more and more people are appreciating the power of vitamin D supplementation to achieve normal blood levels, there may be danger ahead for those who fail to address their calcium overdosing.

The case against vitamin D2

Why would vitamin D be prescribed when vitamin D3 is available over-the-counter?

Let's review the known differences between vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol):

--D3 is the human form; D2 is the non-human form found in plants.

--Dose for dose, D3 is more effective at raising blood levels of 25-hydroxy vitamin D than D2. It requires roughly twice to 250% of the dose of D2 to match that of D3 (Trang H et al 1998).

--D2 blood levels don't yield long-term sustained levels of 25-hydroxy vitamin D as does D3. When examined as a 28-day area under the curve (AUC--a superior measure of biologic exposure), D3 yields better than a 300% increased potency compared to D2. This means that it requires around 50,000 units D2 to match the effects of 15,000 units D3 (Armas LA et al 2004).

--D2 has lower binding affinity for vitamin D-binding protein, compared to D3

--Mitochondrial vitamin D 25-hydroxylase converts D3 to the 25-hydroxylated form five times more rapidly than D2.

--As we age, the ability to metabolize D2 is dramatically reduced, while D3 is not subject to this phenomenon (Harris SS et al 2002).




From Armas LA, Hollis BW, Heaney RP 2004


While there are dissenters on this view, the bulk of evidence suggests that D2 is an inferior form of D3.

Then why is D2 prescribed by many doctors when the natural, human, and superior D3 is available over-the-counter?

You already know the answer: Much of your doctor's education did not come from scientific lectures nor from reading scientific studies. It came from the pretty drug representative in the waiting room who hands the doctor reprints of the "studies" performed by the drug industry to support the use of their drugs. There is no such nutritional supplement representative in the waiting room. This preference for the "drug" D2 over the supplement D3 also stems from the inherent preference of physicians for things they can control, whether or not there is proof of superiority.

In my view, there is absolutely no reason to take vitamin D2 over D3 except to enrich the drug industry.

Honey: More fructose than high-fructose corn syrup

Honey: It’s natural. Mom probably gave it to you, either straight or in tea for a sore throat when you were a kid. Even today, honey is touted as possessing almost supernatural qualities for promoting health.

Honey contains B vitamins, minerals, and a handful of antioxidants. It also contains . . . fructose. 60% of honey, in fact, is fructose.

While the average per capita intake of honey is only a modest 1.29 lb per year (National Honey Board; 2008) and therefore contributes only 0.77 lb of fructose per year, there are people who, believing honey to be healthy, use it to excess and use far more than 1.29 lb per year.

How does that compare to table sugar, or sucrose?

Sucrose is 50:50 glucose to fructose. How about high-fructose corn syrup, the sweetener found in virtually all processed foods that has replaced sucrose as the most common sweetener? Depending on the variety, high-fructose corn syrup is generally 42-55% fructose. Many of us (including me) believe that the proliferation of high-fructose corn syrup in processed foods is a big part of the reason Americans are fat and diabetic.

Yes: Judged by its fructose content, honey is worse than high-fructose corn syrup. It is also worse than sucrose.

It means that honey can also contribute to the adverse health effects of fructose, as detailed in this prior Heart Scan Blog post.

Sun, fish, and seaweed

Extraordinary heart health springs from three basic sources in our environment:

Sun, fish, and seaweed.

Sun: Sunlight exposure is nature's intended source of vitamin D. Humans were meant to run naked, or at least scantily clad, in tropical or sub-tropical climates. The large surface area of skin ensured plenty of skin activation of vitamin D, along with long days of intense sun (unlike the seasonal variation of day length and less intense sun further north).

Fish: Fish are the principal source of omega-3 fatty acids, as are, to a lesser degree, wild land animals. Humans as hunter-gatherers tracked, captured, and slaughtered fish and wild game, eaten immediately, since there was no means of storage. Omega-3-rich game was the principal source of fat for primitive cultures.

Seaweed: Seaweed is the world’s most concentrated source of iodine. While seafood like fish and shellfish also contain iodine, seaweed contains, on average, a thousand-fold greater quantity. Seaweed, like plants found on land, are also rich in phytonutrients.

The healthiest cultures on earth follow this simple recipe for health. The unhealthiest population on earth-meaning Americans (i.e., without benefit of bail-out medications and procedures that keep us alive, or vaccinations that protect us from infectious diseases)--neglect all three. Witness the Okinawans, whose daily meals nearly always contain some form of fish and seaweed, and whose sub-tropical climate provides greater sun exposure. It is not unusual for Okinawans to live to 100 years of age, not as an exception, but the rule. Heart disease was virtually unknown except in 90-year olds and older-that is, until the recent adoption of Western practices like fast food and snacks.

It's pretty incredible when you think about it: Simple practices can markedly reduce your likelihood of heart attack and developing heart disease.

Perhaps you’d rather not run naked along a semi-tropical beach, spear fish, and gather seaweed. You could always do the modern equivalents and achieve similar benefits.

Fructose is a coronary risk factor

As discussed in a previous Heart Scan Blog post, Say Goodbye to Fructose, a carefully-conducted University of California study demonstrated that, compared to glucose, fructose induces:

1) Four-fold greater intra-abdominal fat accumulation

2) 13.9% increase in LDL cholesterol, doubled Apoprotein B

3) 44.9% increase in small LDL, 3-fold more than glucose

4) Increased postprandial triglycerides 99.2%.


Other studies have shown that fructose:

--Increases uric acid--No longer is red meat the cause for increased uric acid; fructose has taken its place. Uric acid may act as an independent coronary risk factor and increases high blood pressure and kidney disease.

--Induces insulin resistance, the situation that creates diabetes

--Increases glycation (fructose linked to proteins) and protein cross-linking, processes that underlie atherosclerosis, liver disease, and cataracts.


Make no mistake: Fructose is a powerful coronary risk factor.
There is no doubt whatsoever that a diet rich in fructose from fruit drinks, honey, raisins and other dried fruit like cranberries, sucrose (table sugar), and high-fructose corn syrup is a high-risk path to heart disease.

Also note that many foods labeled "heart healthy" because of low-fat, low saturated fat, addition of sterol esters, or fiber, also contain fructose sources, especially high-fructose corn syrup.
All posts by william-davis

Cholesterol follies

Rudy is a 59-year old man. He's had three heart catheterizations, two of which resulted in stent implantations. Obviously, Rudy should be the beneciary of a prevention program.

His basic cholesterol values:

Total cholesterol 164 mg/dl--pretty good, it seems.

LDL cholesterol 111 mg/dl--Wow! Not too bad.

HDL cholesterol 23 mg/dl--Uh oh, that's not too good.

Triglycerides 148 mg/dl--By national (NCEP ATP-III) guidelines, triglycerides of 150 mg/dl and below fall within the desirable range.


So we're left with an apparently isolated low HDL cholesterol, nothing more. On the surface, it doesn't seem all that bad.

Of course, we need to keep in mind that this pattern landed Rudy in the hospital on several occasions and prompted several procedures.

Should we rely on these results? How about Rudy's lipoproteins?

Here they are (NMR; Liposcience):

LDL particle number 2139 nmol/l--Representing an effective LDL of 213--over 100 mg higher than the standard value (above) suggests.

Small LDL particles 2139 nmol/l--In other words, 100% of all Rudy's LDL particles are small. (Thus, weight-based measures of LDL cholesterol fail to tell us that he has too many small particles.)

Large HDL 0 (zero) mg/dl--Rudy has virtually no functional HDL particles.


If we had relied only on Rudy's standard cholesterol values, we would have focused on raising HDL. However, lipoprotein analysis uncovered a smorgasbord of additional severe patterns. The high LDL particle number comprised 100% of small particles is especially concerning.

Truly, conventional cholesterol testing is a fool's game, one that time and again fails to fully uncover or predict risk for heart disease. One look at Rudy's lipoproteins and it becomes immediately obvious: This man is at high risk for heart disease and the causes are clear.

Of course, many physicians and insurance companies argue that the added information provided by this portion of the lipoprotein test added around $70 more to the expense.

When you see results like this, is there even a choice?

Equal calories, different effects

A great study was just published in the Journal of the American College of Cardiology:

Metabolic effects of weight loss on a very-low-carbohydrate diet compared with an isocaloric high-carbohydrate diet in abdominally obese subjects.

88 obese adults with metabolic syndrome were placed on either of two diets:

1) A very low-carbohydrate, high-fat diet (VLCHF): 4% calories from carbohydrates (truly low-carb); 35% protein; 61% fat, of which 20% were saturated. In the first 8 weeks, carbohydrate intake was severely limited to <20 grams per day, then <40 grams per day thereafter.

2) A high-carbohydrate, low-fat diet (HCLF): 46% calories from carbohydrates; 24% protein; 30% total fat, of which <8% were saturated.

Both diets were equal in calories (around 1400 calories per day--rather restrictive) and participants were maintained on the program for six months.

At the end of the six month period, participants on the VLCHF diet lost 26.4 lb, those on the HCLF diet 22.2 lbs (though the difference did not reach statistical significance). Thus, both approaches were spectacularly successful at weight loss.

Surprisingly, blood pressure, blood sugar, insulin and insulin sensitivity (a measure called HOMA) were all improved with both diets equally. Thus, these measures seemed to respond more to weight loss and less to the food composition.

Lipids differed between the two diets, however:


VLCHF:
Total cholesterol: initial 208.4 mg/dl final 207.7 mg/dl

LDL: initial 125 mg/dl final 123 mg/dl

HDL: initial 55 mg/dl final 64.5 mg/dl

Triglycerides: initial 144 mg/dl final 74 mg/dl

Apoprotein B: initial 98 mg/dl final 96 mg/dl


HCLF
Total cholesterol: initial 208.4 mg/dl final 187.5 mg/dl

LDL: initial 126 mg/dl final 108 mg/dl

HDL: initial 51 mg/dl final 54.5 mg/dl

Triglycerides: initial 157.6 mg/dl final 111 mg/dl

Apoprotein B: initial 100 mg/dl final 95 mg/dl


Some interesting differences became apparent:
--The VLCHF diet more effectively reduced triglycerides and raised HDL.
--The HCLF diet more effectively reduced total and LDL.
--There was no difference in Apo B (no statistical difference).

The investigators also made the observation that individual responsiveness to the diets differed substantially. They concluded that both diets appeared to exert no adverse effect on any of the parameters measured, both were approximately equally effective in weight loss with slight advantage with the carbohydrate restricted diet, and that lipid effects were indeed somewhat different.


What lessons can we learn from this study? I would propose/extrapolate several:

When calories are severely restricted, the composition of diet may be less important. However, when calories are not so severely restricted, then composition may assume a larger role. When calories are unrestricted, I would propose that the carbohydrate restriction approach may yield larger effects on weight loss and on lipids when compared to a low-fat diet.

The changes in total cholesterol are virtually meaningless. Part of the reason that it didn't drop with the VLCHF diet is that HDL cholesterol increased. In other words, total cholesterol = LDL + HDL + trig/5. A rise in HDL raises total cholesterol.

Despite no change in Apo B, if NMR lipoprotein analysis had been performed (or other assessment of LDL particle size made), then there would almost certainly have seen a dramatic shift from undesirable small LDL to less harmful large LDL particles on the VLCHF diet, less change on the HCLF diet.

The lack of restriction of saturated fat in the VLCHF that failed to yield adverse effects is interesting. It would be conssistent with the re-analysis of saturated fat as not-the-villain-we thought-it-was put forward by people like Gary Taubes (Good Calories, Bad Calories).

In the Track Your Plaque experience, small LDL is among the most important measures of all for coronary plaque reversal and control. Unfortunately, although this study was well designed and does add to the developing scientific exploration of diet, it doesn't add to our insight into small LDL effects. But if I had to make a choice, I'd choose the low-carbohydrate, high-fat approach for overall benefit.

Is skinny necessary for reversal?

Nothing we do in the Track Your Plaque program guarantees that coronary atherosclerotic plaque or your heart scan score is reduced or reversed.



But everything we do weighs the odds in your favor of successfully achieving reversal: correction of lipoprotein patterns, uncovering hidden patterns like Lp(a), vitamin D, being optimistic--it all tips the scales in your favor.

But how necessary is it to be skinny, meaning somewhere near your ideal weight?

It is important, but not as important as it used to be. Let me explain.

I used to tell people that plaque would not regress unless ideal weight was achieved and all the parameters of abdominal obesity and metabolic syndrome were corrected. This includes blood pressure, blood sugar, low HDL, small LDL, high triglycerides, and high c-reactive protein. Curiously, though, as we've gotten better and better at reducing coronary calcium scores, I've been finding that complete correction of all parameters, including achieving ideal weight, don't seem to be as necessary to achieve plaque reversal.

I almost hate to say this, but I've even witnessed significant drops in heart scan scores in people with body mass indexes (BMI) of 30--obese.

The necessary change doesn't seem to be weight, per se, but the consequences of weight. In other words, if you remain overweight, but blood sugar, HDL, small LDL, etc. have shown substantial improvement, then reversal is still achievable.

Then is it okay to be fat or overweight?

Reducing weight to ideal weight does indeed tip the scales in your favor, since it represents an observable, perceptible measure of all associated patterns. Dropping weight can also minimize the need for efforts to correct the consequences of overweight--you might need less niacin, fish oil, exercise, blood pressure medication, etc. to succeed at plaque reversal. Achieving ideal weight may also provide benefits like reduced risk of cancers and degenerative diseases of the hips and knees. But, to my recent surprise over the last two years, achieving ideal weight is not an absolute requirement to achieve reversal.

This is contrary to what some others say. For instance, in an upcoming interview with Dr. Joel Fuhrman on the Track Your Plaque website, Dr. Fuhrman argues that 10% body fat for males, 22% body fat for females, accelerates plaque and symptom reversal. Dr. Fuhrman is author of Fasting and Eating for Health, Eat to Live, and a new upcoming 2-part book, Eat for Health, and proponent of high-nutrient vegetarian diets and fasting. Dr. Fuhrman has been helpful in teaching us some important lessons on how to apply periodic fasting to accelerate plaque reversal.

So, which is it, fat or skinny?

If given a choice (which everyone has), I'd choose skinny. But, provided all the parameters associated with overweight are corrected, then remaining overweight doesn't necessarily mean that you can't still succeed at plaque reversal.

If you are interested in knowing what your ideal weight is, there are a number of software calculators and tables available, including the HealthCentral.com calculator and the National Heart, Lung, and Blood Institute BMI Calculator.


Image courtesy Wikipedia.

Copyright William Davis, MD 2008

MESA Study: Track Your Plaque-Lite?

The long-awaited data analyses from the Multi-Ethnic Study of Atherosclerosis (MESA) are finally making it to press.

The MESA Study is an enormously ambitious and important study of 6800 people, 45 to 84 years old, that includes white, black, Hispanic, and Chinese participants from six communities around the U.S. (Forsyth County, NC; Northern Manhattan and the Bronx, NY; Baltimore and Baltimore County, Md; St Paul, Minn; Chicago, Ill; and Los Angeles County, California.) Participants had no history of heart disease at enrollment. All underwent a heart scan (either EBT or multi-detector heart scans) at the start. It is therefore the largest prospective study involving heart scans ever performed. It is, not unexpectedly, yielding some fascinating observations relevant to the Track Your Plaque program. The MESA study is, incidentally, funded by the non-commercial, publicly-funded National Heart, Lung, and Blood Institute and is therefore presumably free of commercial bias.

Among the most recent publications is Risk factors for the progression of coronary artery calcification in asymptomatic subjects: Results from the Multi-Ethnic Study of Atherosclerosis (MESA) In this analysis of 5700 of the MESA participants, a repeat heart scan was obtained an average of 2.4 years after the first. Conventional risk factors for heart disease were obtained at the start (see below for details under Measurement of Covariates.)

After analyzing the data and risk factors assessed, such as age, sex, race, blood pressure, body mass index (BMI), presence of diabetes, blood sugar, and family history of heart disease, two questions were asked:

1) What risk factors predict heart scan scores?

2) What risk factors predict progression (i.e., increase) in heart scan scores?

(The second question is particularly relevant to us and the Track Your Plaque experience.)

The MESA analysis showed that essentially all the risk factors assessed correlated with both the initial heart scan score, as well as the rate of progression. No surprises here.

But the most eye-opening finding was that the conventional risk factors assessed explained only 12% of the variation and progression in heart scan scores (coefficient of determination, or R squared, = 0.12.) In other words:

--Conventional risk factors like LDL cholesterol, diabetes, and excess weight explain only a tiny fraction of why someone develops coronary atherosclerotic plaque as represented by a heart scan score.

--The great majority of risk for a high heart scan score remains unexplained by conventional risk factors.

--The great majority of risk for progressive increase in heart scan scores also remains unexplained by conventional risk factors.


In light of the MESA analysis, it's no surprise that strategies like reducing LDL cholesterol with statin drugs fails to prevent most heart attacks. It's no surprise that conventional prevention programs that talk about "knowing your numbers," eating a "balanced" or low-fat diet, etc., fail miserably to prevent the vast majority of heart attacks and heart procedures.

MESA confirms what we've been saying these past few years: If you want control over coronary heart disease, you won't find it in Lipitor, a low-fat diet, and other limited conventional notions of risk. Correction of conventional risk factors like cholesterol and blood pressure are, in a word, a failure. I wouldn't even call the conventional approach Track Your Plaque-Lite. They don't even come close.

If conventional risk factors can explain only 12% of the reason behind heart disease, we've got to look elsewhere to understand why you and I develop this process.



Measurement of Covariates
Information on demographics, smoking, medical conditions, and family history was collected by questionnaire at the initial examination. Height and weight were also measured at the baseline examination, and blood was drawn for measurements, including lipids, inflammation, fasting glucose, fibrinogen, and creatinine. Resting blood pressure was measured 3 times in the seated position, and the average of the last 2 measurements was used in the analysis. Medication use was determined by questionnaire. Additionally, the participant was asked to bring to the clinic containers for all medications used during the 2 weeks before the visit. The interviewer then recorded the name of each medication, the prescribed dose, and frequency of administration from the containers.


Copyright 2008 William Davis,MD

Risks for coronary disease 2008

According to conventional thinking, there are identifiable risks for coronary disease and heart attack. These risk factors are:

* smoking
* high blood pressure
* high blood cholesterol and excessive saturated fat intake
* diabetes
* being overweight or obese
* physical inactivity

I'd agree with all the factors listed (though I would argue about the importance of high blood cholesterol and saturated fat; they are not as important as commonly made to be.)

Is the list complete?

From the unique perspectives gained in the Track Your Plaque program, I'd offer a significantly different list. Trying to stop or reduce coronary atherosclerotic plaque and heart scan scores makes you a whole lot smarter about what works and what doesn't work.

So, in addition to the risk factors listed above, I would add:

* Small LDL particles--Lots of small LDL particles is MORE important than high LDL.
* High blood pressure with exercise
* Excessive wheat intake and other processed carbohydrates--An issue of explosive importance today. Wheat creates large numbers of small LDL particles, among other adverse effects.
* Vitamin D deficiency--Among the most powerful risks I know of. It belongs at the top of the list.
* Vitamin K2 deficiency
* Low HDL cholesterol
* Blood sugar >100 mg/dl
* High triglycerides--While some argue about whether triglycerides are a risk that behaves independently of patterns like low HDL, they are neglecting the potent force of this risk. Sure, it occurs in tandem with low HDL (usually, though not always), but it is a factor that can leave you with risk even when HDL is raised to healthy levels.
* Lipoprotein(a)--It is eminently, positively crystal clear that lipoprotein(a) is a powerful risk for heart disease. The lack of a profitable treatment keeps it hidden in the shadows.
* Pessimism--Be happy, do better. Be a constantly angry, frustrated, complaining sourpuss and you are more likely to succumb to heart disease, cancer, or other undesirable fate.


These are the risk factors that we address through the Track Your Plaque program, a list that yields a far more powerful and comprehensive approach to control over coronary plaque/atherosclerosis, sufficient to achieve reversal in many (though not in all) instances.

I view the list of conventional risk factors as a "no brainer" list. Sure, smoking is a risk factor. But there are virtually no smokers in the Track Your Plaque program. If you smoke, you clearly don't care enough to engage in a high-intensity prevention program like this.

Saturated fat? Perhaps, but the battlefield of heart disease is riddled with the bodies of those who employed this as their sole strategy and failed catastrophically.

Diabetes, hypertension, and overweight all represent a continuum of risk; the solutions offered in the conventional scheme (i.e., low-fat diet, etc.) make these patterns worse, not better.

The conventional response to heart disease risk is trapped somewhere in 1973 and has not changed in over 30 years. Heart disease continues to be a growth industry for hospitals and the pharmaceutical and medical device industries. The "official" organizations continue to deliver an antiquated, outdated message.

If you want heart disease, follow the American Heart Association diet. If you want established heart disease to get worse, follow the American Heart Association diet. If you want diabetes or, if you already have diabetes or pre-diabetes, if you want it to worsen and develop organ damage (eyes, kidneys, nervous system, etc.), then follow the American Diabetes Association diet. USDA food pyramid? Loosen your belt!

The list of conventional risk factors for heart disease is woefully inadequate. If that is as far as your prevention program takes you, heart disease will not be controlled or prevented. At best, it might be slowed; at worst--and more likely--it might be accelerated.

Food sources of vitamin K2



Vitamin K2 is emerging as an exciting player in the control and possible regression of coronary atherosclerotic plaque. Only about 10% of dietary vitamin K intake is in the K2 form, the other 90% being the more common K1.

The ideal source of K2 is natto, the unpalatable, gooey, slimy mass of fermented soybeans that Japanese eat and has been held responsible for substantial decreases in osteoporosis and bone fractures of aging. Natto has an ammonia-like bouquet, in addition to its phlegmy consistency that makes it virtually inedible to anyone but native Japanese.

I say that the conversation on vitamin K2 is emerging because of a number of uncertainties: What form of vitamin K2 is best (so-called MK-4 vs. MK7 vs. MK-9, all of which vary in structure and duration of action in human blood)? What dose is required for bone benefits vs. other benefits outside of bone health? Why would humans have developed a need for a nutrient that is created through fermentation with only small quantities in meats and other non-fermented foods?

Much of the developing research on vit K2 is coming from the laboratories of Drs. Vermeer, Geleijnse, and Schurgers at the University of Maastricht in the Netherlands, along with several laboratories in Japan, the champions of K2.

MK-7 and MK-8,9,10 come from bacterial fermentation, whether in natto, cheese, or in your intestinal tract; MK-4 is naturally synthesized by animals from vitamin K1. While natto is the richest source of the MK-7 form, egg yolks and fermented cheeses are the richest sources of the MK-4 form.

Chicken contains about 8 mcg MK-4 per 3 1/2 oz serving; beef contains about 1 mcg. Egg yolks contain 31 mcg MK-4 per 3 1/2 oz serving (app. 6 raw yolks). Hard cheeses contain about 5 mcg MK-4 per 3 1/2 oz serving, about 70 mcg of MK-8,9; soft cheeses contain about 30% less. Natto contains about 1000 mcg of MK-7, 84 mcg MK-8, and no MK-4 per 3 1/2 oz serving.











Feta cheese

Thanks to the research efforts of the Dutch and Japanese groups, several phenomena surrounding vitamin K2 are clear, even well-established fact:

--Vitamin K2 supplementation (via frequent natto consumption or pharmaceutical doses of K2) substantially improves bone health. While K2 by itself exerts significant bone density/strength increasing properties in dozens of studies, when combined with other bone health-promoting agents (e.g., vitamin D3, prescription drugs like Fosamax and calcitonin), an exaggerated synergy of bone health-promoting effects develop.



--The MK-4 form of vitamin K2 is short-lived, lasting only 3-4 hours in the body. The MK-7 form, in contrast, the form in natto, lasts several days. MK-7 and MK-8-10 are extremely well absorbed, virtually complete.

--Bone health benefits have been shown for both the MK-7 and MK-4 forms.

--Coumadin (warfarin) blocks all forms of vitamin K.





Interestingly, farm-raised meats and eggs do not differ from factory farm-raised foods in K2 content. (But please do not regard this as an endorsement of factory farm foods.)

Another interesting fact: Since mammals synthesize a small quantity of Vit K2 forms from vitamin K1, then eating lots of green vegetables should provide substrate for some quantity of K2 conversion. However, work by Schurgers et al have shown that K1 absorption is poor, no more than 10%, but increases significantly when vegetables are eaten in the presence of oils. (Thus arguing that oils are meant to be part of the human diet. Does your olive oil or oil-based salad dressing represent fulfillment of some subconscious biologic imperative?)

If we believe the data of the Rotterdam Heart Study, then a threshold of 32.7 micrograms of K2 from cheese yields the reduction in cardiovascular events and aortic calcification.

It's all very, very interesting. My prediction is that abnormal (pathologic) calcium deposition will prove to be a basic process that parallels atherosclerotic plaque growth, and that manipulation of phenomena that impact on calcium depostion also impact on atherosclerotic plaque growth. Vitamins D3 and K2 provide potential potent means of at least partially normalizing these processes.

As the data matures, I am going to enjoy my gouda, Emmenthaler, Gruyere, and feta cheeses, along with a few egg yolks. I'm going to be certain to include healthy oils like olive and canola with my vegetables.


All images courtesy Wikipedia.

Copyright 2007 William Davis, MD

Track Your Plaque: Naughty or nice?



Among the many wonderful surprises we've had at Track Your Plaque this holiday season was a letter from Santa Claus himself!

It seems that Santa, like the rest of us, has been busy surfing the web for useful health information the last few months. He was struck with this curious discussion we've been having about "wheat belly" and all the unhealthy consequences of wheat products in our diet.

He writes:

"I wouldn't have believed it myself, except that my waist size has grown four inches in as many years. Sure, I'm known for my healthy girth, but now even Mrs. Claus calls me fat!

"I was open to new ideas when I came across this crazy discussion about eliminating wheat from your diet. So I said, "What have I got to lose?" Well, four weeks later and 12 lbs lighter, I'm convinced. Now comes the tough part: I've got to deliver all the toys and resist all those cookies the children put out for me. I wonder if wheat makes reindeer fat, too?

"Anyway, thanks to your program I'm back to my old weight again. Doc says my blood sugar and blood pressure are also back down to normal. Thanks, Track Your Plaque! (You'll find something extra special under the tree this year.)"

And so it goes. I'm tempted to put Santa's testimonial on our homepage, but I think that may be tooting our own horn a bit too much.

Have a wonderful holiday!

Vitamin D: Treatment for metabolic syndrome?

Metabolic syndrome is that increasingly common collection of low HDL cholesterol, high triglycerides, high blood sugar, and high pressure that now afflicts nearly 1 in 4 adults, rapidly gaining ground to 1 in 3. Beyond these surface factors, metabolic syndrome also creates small LDL particles, VLDL, intermediate-density lipoproteins (IDL), increased imperceptible inflammation measured as higher c-reactive protein, and greater blood clotting tendencies. Metabolic syndrome is usually, though not always, associated with a big tummy ("beer belly," though I call it "wheat belly").

In short, metabolic syndrome creates a metabolic mess that leads to dramatic increases in heart disease, vascular disease and stroke, and cancer. The medical community has been paying increasingly greater attention to this condition because of its booming prevalence and because of the big bucks invested in "education" by the manufacturers of the diabetes and pre-diabetes drugs, particularly makers of Actos and Avandia.

But here's a curious observation:

Replacement of vitamin D to healthy levels (we aim for 50-60 ng/ml, or 125-150 nmol/l) yields:

--Higher HDL
--Lower triglycerides
--Lower blood sugar
--Reduced c-reactive protein
--Reduced blood pressure
--Reduced small LDL
--Enhanced sensitivity to insulin

(Whether blood clotting and effects on IDL should be added to this list is uncertain.)

It's obvious: Vitamin D is proving to be a very important and powerful corrective influence on many of the facets of the metabolic syndrome. In fact, I would go as far as saying that, side by side, vitamin D yields nearly the same effect as prescription drugs Actos and Avandia--without the extravagant cost (nearly $200 per month), leg swelling, congestive heart failure and heightened heart attack risk (with Avandia), and average 8 lb weight gain. Of course, vitamin D also provides benefits beyond metabolic syndrome like facilitation of coronary plaque regression, increased bone density, reduced arthritis, and reduced risk of several cancers.

You'd think that agencies like the American Diabetes Association (ADA) would be all over vitamin D like white on rice. Yet they remain curiously quiet about the entire issue. (That should come as no surprise to anyone familiar with the behavior and politics of this organization, the same outfit that has widely propagated the ADA diet, a program that accelerates diabetes and its complications. In my view, the ADA is an embarassment.)



For a really great story and video on vitamin D that includes a terrific interview with vitamin D guru and Track Your Plaque friend, California psychiatrist Dr. John Cannell, go to What's the Real Story on Vitamin D?. While the video will yield little new to readers of The Heart Scan Blog or Track Your Plaque members, it just feels really good to see a well-made, high-class video production echoing many of the things we've been talking about these past two years.

Appetite stimulants

Ever have days when you just can't seem to get enough to eat, your stomach gnawing just a hour after a meal? We all get them, some more than others. Other days, you can be content with a few simple foods and hunger is subdued, temptation easy to control.

Why such contrasts on different days?

A major part of the reason can be the presence of appetite stimulants, factors that trigger appetite beyond rational control. The list of common appetite stimulants includes:

--Sleep deprivation--A very important factor. Lack of sleep drives tremendous appetite, and often for the wrong foods (processed carbohydrates). I personally have experienced my most shamefully indulgent days when sleep-deprived. The solution is obvious: Sleep. Another factor that is based purely on personal observation is that of waking mid-phase. In other words, waking up while you're still enjoying the deeper phases of sleep (e.g., phase 3,4, or REM). This can oddly disrupt your day and your impulse control. I usually try and time sleep to increments of 90 minutes to coincide with the average duration of the full cycle of sleep. For example, 7 1/2 hours is better than 8 hours, since the extra half hour puts your square into a deeper sleep cycle.

--Excessive caffeine--Caffeine stimulates stomach acid. This triggers the impulse to eat . . . and eat and eat.













Image courtesy Wikipedia

--Aspirin and other anti-inflammatory agents--If you take aspirin (as many of our Track Your Plaquers do), then beware of the gastritis that can develop. Like excessive caffeine, it also triggers the impulse to eat, likely a protective mechanism, since food sops up excess acid. I ask patients to take periodic breaks from aspirin, e.g., a week off every two or three months, to allow the stomach to heal. Alternatively, an occasional dose of acid-suppressing medication is a safe practice, e.g., Pepcid AC 10-20 mg; Prilosec 10-20 mg.

--Wheat-containing foods--Followers of The Heart Scan Blog know my feelings on this. Wheat is a potent appetite stimulant: Eat something containing wheat like a pretzel or whole wheat bagel, and you want more. You may want more immediately, or a little later when your blood sugar plunges after the wheat-driven insulin surge. Solution: Dump the wheat, one of the most unhealthy food groups around.

--Alcohol--Though perhaps not a direct appetite-stimulating effect, the loss of impulse-control with alcoholic drinks can lead to overindulgence, often in the worst foods. Just beware.

--Hanging around with heavy people. Remember peer pressure? It can be subliminal. People with poor eating habits provide the silent message that it's okay to yield to impulse, overeat, overindulge, and choose the wrong foods.

--Stress--Whether through cortisol stimulation or other means, stress triggers appetite in some people. If you experience this and must give in, reach for raw nuts or nuts, rather than wheat snacks or chips. The effect will be minimal, perhaps even beneficial, rather than the bloating, appetite-stimulating, fattening effect of crackers, chips, or pretzels. This may be the same phenomenon as taking prescription steroids like prednisone.

--Short dark days, long nights--In other words, winter. Though just an anecdotal observation, I am convinced that vitamin D supplementation is an effective antidote to this effect. The short, dark days just don't bother you as much, perhaps not at all, and there's no impulse for comfort foods.


How about appetite suppressants? In this list I would include 1) raw nuts--especially almonds, walnuts, pecans, and pistachios, the sort with a fibrous covering and rich in monounsaturates, 2) other sources of plentiful healthy oils, e.g, use more olive oil in your salad or add it to hummus for your veggie dip, 3) space-occupying fibers such as glucomannan, inulin (such as in Fiber Choice), and psyllium seed products. Counteracting the above appetite stimulants like sleep deprivation is, of course, important.

The coming wheat frenzy, otherwise known as the holidays, is an especially important time to be aware of these effects. Eat, drink, and be merry--but with rational impulse control not driven by subconscious appetite stimulants.

"Heart scans are experimental"

Let me warn you: This is a rant.

It is prompted by a 44-year old woman. She has a very serious lipoprotein disorder. Her family experiences heart attacks in their 40s and 50s. I asked for a heart scan. Her insurance companied denied it.

This is nothing new: heart scans, like mammograms, have not enjoyed reimbursement from most insurers despite the wealth of data and growing acceptance of this "mammogram" of the heart.

However, 10 minutes on the phone, and the "physician" (what well-meaning physician can do this kind of work for an insurance company is beyond me) advised me that, while CT heart scans for coronary calcium scoring are not covered, CT coronary angiograms are.

Now, I've been witnessing this trend ever since the big players in CT got involved in the game, namely Philips, Siemens, Toshiba, and GE. These are enormous companies with hundreds of billions of dollars in combined annual revenues. They, along with the lobbying power of cardiology organizations like the American College of Cardiology, have gotten behind CT coronary angiograms. This is most likely the explanation of why CT coronary angiograms have rather handily obtaining insurance reimbursement. Interestingly, the insurance company I was speaking to is known (notorious?) for very poor reimbursement practices.

A CT heart scan, when properly used, generates little revenue, a few hundred dollars to a scan center, barely enough to pay for a device that costs up to $2 million. However, CT coronary angiograms, in contrast, yield around $2000 per test. More importantly, they yield downstream revenues, since CT angiograms are performed as preludes to conventional heart catheterizations, angioplasty, stents, bypass surgery, etc. Now we're talking tens or hundreds of thousands of dollars revenue per test.

What puzzles me is that much of that increased cost comes out of the insurance company. Why would they support such tests if it exposes them to more costs? I'm not certain. It could be the greater pressures exerted by the big CT companies and powerful physician organizations. I seriously doubt that the insurance companies truly believe that heart scans for coronary calcium scoring are "experimental" while CT coronary angiograms are "proven." If all we did was compare the number of clinical studies that validate both tests, we'd find that the number of studies validating heart scans eclipses that of coronary angiograms several fold. Experimental? Hardly.

The smell of money by physicians eager to jump on the bandwagon of a new revenue-producing procedure is probably enough to have them lobby insurers successfully. In contrast, plain old heart scans just never garnered the kind of vigorous and vocal support, since nobody gets rich off of them.

If CT coronary angiograms are sufficiently revenue producing that my colleagues and the CT scanner manufacturers have managed to successfully lobby the health insurers, even one as financially "tight" as the one I spoke to today, well then I take that as testimony that money drives testing, as it does the behavior of hospitals, many of my colleagues, and can even force the hand of insurers.