Fat Head: Tom Naughton's manifesto for low-carb eating

12. March 2010 William Davis (16)
I just got back from Jimmy Moore's low-carb cruise to the Bahamas.

Among the many interesting people I met on the cruise was the creator of the documentary film, Fat Head, Tom Naughton.

Tom brings both creative insights into low-carbohydrate eating as well as humor. Low-carb eating can be a pretty contentious issue, but Tom made it fun. He will make you laugh about many of the odd notions we have about diet.

Among the best parts of Fat Head is Tom's portrayal of the effects of carbohydrates on insulin and fat metabolism:






Fat Head joins the ranks of films like Food, Inc, that make nutrition information entertaining. For anyone interested in a unvarnished look at diet, weight loss, along with a few laughs along the way, Tom Naughton's Fat Head is worth viewing.

Oatmeal: Good or bad?

11. March 2010 William Davis (67)

You've heard it before: oatmeal reduces cholesterol. Oatmeal producers have obtained permission from the FDA to use a cholesterol-reducing claim. The American Heart Association provides a (paid) endorsement of Quaker Oats.

I've lost count of the times I've asked someone whether they ate a healthy breakfast and the answer was "Sure. I had oatmeal."

Is this true? Is oatmeal heart healthy because it reduces LDL cholesterol?

I don't think so. Try this: Have a serving of slow-cooked (e.g., steel-cut, Irish, etc.) oatmeal. Most people will consume oatmeal with skim or 1% milk and some dried or fresh fruit. Wait an hour, then check your blood sugar.

If you are not diabetic and have a fasting blood sugar in the "normal" range (<100 mg/dl), you will typically have a 1-hour blood glucose of 150-180 mg/dl--very high. If you have mildly increased fasting blood sugars between 100 and 126 mg/dl, postprandial (after-eating) blood sugars will easily exceed 180 mg/dl. If you have diabetes, hold onto your hat because, even if you take medications, blood sugar one hour after oatmeal will usually be between 200 and 300 mg/dl.

This is because oatmeal is converted rapidly to sugar, and a lot of it. Even if you were to repeat the experiment with no dried or fresh fruit, you will still witness high blood sugars in these ranges. Do like some people and pile on the raisins, dried cranberries, or brown sugar, and you will see blood sugars go even higher.

Blood sugars this high, experienced repetitively, will damage the delicate insulin-producing beta cells of your pancreas (glucose toxicity). It also glycates proteins of the eyes and vascular walls. The blood glucose effects of oatmeal really don't differ much from a large Snickers bar or bowl of jelly beans.

If you are like most people, you too will show high blood sugars after oatmeal. It's easy to find out . . . check your postprandial blood sugar.

In past, I recommended oat products, specifically oat bran, to reduce LDL, especially small LDL. I've changed my mind: I now no longer recommend any oat product due to its blood sugar-increasing effects.

Better choices: eggs, ground flaxseed as a hot cereal, cheese (the one dairy product that does not excessively trigger insulin), raw nuts, salads, leftovers from last evening's dinner.

Mustard: Super health food?

6. March 2010 William Davis (32)
Could mustard--yes, the yellow condiment you smear on hot dogs--be a super heart healthy food in disguise?

Consider that mustard contains:

Vinegar

Turmeric

No appreciable sugar


The vinegar slows gastric emptying, resulting in slower absorption of any carbohydrates and a reduced glucose area-under-the-curve. Of the little fats contained (about 3 grams per 1/4 cup), most are desirable monounsaturates. Mustards are relatively rich in selenium, with 20 mcg per 1/4 cup, helpful for protection against cancer and thyroid disease, and magnesium, 31 mg per 1/4 cup.

Turmeric is added to most mustards. One of the constituents of turmeric, curcumin, the substance that confers the bright yellow color, has been a focus of interest for its anti-inflammatory effects. Curcumin has been documented to reduce activity of the inflammatory enzymes cyclooxygenase-2 (COX-2), lipoxygenase, and reduce activity of inflammatory signal molecules, tumor necrosis factor-alpha (TNF-a), interleukin (IL)-1,2,6,8, and 12, and monocyte chemoattractant protein (MCP). Curcumin also has been shown to reduce LDL oxidation, a potentially important step in atherosclerotic plaque formation. Turmeric is used as a tea by Okinawans. (Hmmmm . . . )

Turmeric content of mustard can vary, of course. Likewise, sugar content. Look for mustards that are not sweetened, so avoid honey mustard in particular. Look for hot, brown, horseradish, Dijon, etc. If there is a downside to mustard, it's sodium content, though the 709 mg per 1/4 cup should only be a problem for those who are sodium-sensitive (African Americans, in particular).

So perhaps mustard isn't exactly a super health food. But it may have some bona fide health effects and should be used generously especially if you are concerned about blood sugar and inflammatory phenomena.

Exercise and blood sugar

5. March 2010 William Davis (30)
There is no doubt that exercise yields benefits across a spectrum of health: reduced blood pressure,  reduced inflammation, reduced blood coagulation, better weight control, stronger bones, less depression, reduced risk for heart attack.

Exercise also influences blood sugar. Diabetics understand this best: Exercise reduces blood sugar 20, 30, 50 or more milligrams. A starting blood sugar, for instance, of 160 mg/dl can be reduced to 80 mg/dl by jogging or riding a bicycle. (I recently had brunch at an Indian restaurant with my family. Blood sugar one-hour postprandial: 134 mg/dl. I was sleepy and foggy. I got on my stationary bike and pedalled at a moderate clip for 60 minutes. Blood sugar: 90 mg/dl.)

Could the reduction of blood sugar with exercise be THE reason that exercise and physical activity provide such substantial benefits?

Think about it. Reduced blood sugar:

1) Reduces risk for future cardiovascular events.
2) Reduces glycation of proteins, i.e., reduced glucose binding to proteins like the ones in artery walls and the lenses of your eyes.
3) Reduces blood coagulation
4) Reduces endothelial dysfunction (abnormal artery constriction that leads to atherosclerosis)

This might explain why it doesn't require high levels of aerobic activity to derive benefit from exercise, since even modest efforts (e.g., a 15-minute walk after eating) reduce blood sugar substantially.

The incredible 33-year, 18,000-participant Whitehall study tells us that a postprandial (after-eating) blood sugar of an impossibly-difficult 83 mg/dl is required to erase the excess cardiovascular risk of blood sugar. Could this simply be telling us that physical activity or exercise is required to suppress blood sugars to these low levels?

It makes me wonder if an index of the adequacy of exercise is your post-exercise blood glucose.

The most important weight loss tool

4. March 2010 William Davis (15)

Question: What is the most effective tool available to help you lose weight? 


A pedometer (walk 10,000 steps, etc.)?

A treadmill? 




A bicycle?






No. None of the above. 

The most important tool you can use to achieve weight loss is your glucose monitor:



Timing of blood sugars

3. March 2010 William Davis (5)
Because different foods generate different blood sugar (glucose) responses, the timing of your blood sugar is an important factor to consider.

This question has come up a number of times. Commenters have asked whether the one-hour postprandial glucose is timed with the start of the meal or the conclusion of the meal.

In my view, if we simply ignored all aspects of meal composition, then blood glucose should be obtained one hour after the conclusion of a meal. This is because most mixed meals (i.e., mixed in composition among proteins, fats, and carbohydrates) yield peak blood glucose levels at 60-90 minutes after consumption. Timing blood glucose to 60 minutes after the conclusion of a meal puts the sample right about at the peak.

But this is an oversimplification. For instance, here is the blood glucose behavior after so-called "complex" carbohydrates wheat bread, rye bread, rye made with beta glucan, and whole wheat pasta (50 grams carbohydrates each) in slender, healthy volunteers, mean age 29 years:


From Juntunen et al 2002

Note that blood glucose peaks at 35 minutes postprandial. (To convert glucose in mmol/L to mg/dl, multiple by 18. Thus, whole wheat bread increased blood glucose from 94 mg/dl to 122 mg/dl. Also note the lower peak glucose for pasta, but sustained higher glucose levels hours later.)

In another study, older (mean age 64 years), overweight (BMI 27.9) females with diabetes were given 50 grams carbohydrate, 50 grams carbohydrate with olive oil, or 50 grams carbohydrate with butter:


From Thomsen et al 2003. Control meal of soup plus 50 g carbohydrates ({blacktriangledown}), the control meal plus 80 g olive oil ({circ}), and the control meal plus 100 g butter (•).

In this experience, note that postprandial glucose peaks 60-120 minutes after the meals (consumed within 10 minutes), delayed more when either oil is included. Blood glucose started at 144 mg/dl and peaked as high as 230 mg/dl with carbohydrates only; peaks were reduced (along with AUC) when oil was included. (Note the differential effect, olive oil vs. butter.)

These two sets of observations give you a range of blood glucose behavior. One side lesson: Carbohydrates should never consumed by themselves, else you will pay with a high blood sugar (not to mention the hypoglycemic response later for many).

Psssst . . . There's sugar in there

1. March 2010 William Davis (13)
You non-diabetics who check your postprandial blood sugars already know: There are hidden sources of sugar in so many foods.

By now, everybody should know that foods like breakfast cereals, breads, bagels, pretzels, and crackers cause blood sugar to skyrocket after you eat them. But sometimes you eat something you thought was safe only to find you're showing blood sugars of 120, 130, 150+ mg/dl.

Where can you find such "stealth" sources of sugars that can screw up your postprandial blood sugars, small LDL, inflammation, blood pressure, and cause you to grow visceral fat? Here's a few:

Balsamic vinaigrette
Many commercially-prepared balsamic vinaigrettes, especially the "light" varieties, have 3 or more grams carbohydrates per tablespoon. Generous use of a sugar-added vinaigrette can therefore provide 12+ grams carbs. (Some, like Emeril's and Wish Bone, also contain high-fructose corn syrup.)

Hamburgers
I learned this lesson the hard way by taking my blood sugar after having a hamburger, turkey burger, or vegetarian burger (without bun): blood sugar would go way up. The effect is due to bread crumbs added to the meat or soy.

Tomato soup
If it were just tomatoes, it would still be somewhat high in sugars. But commercially-prepared tomato soup often contains added high-fructose corn syrup, sucrose, and wheat flour, bringing sugar totals to 12 to 20+ grams per half-cup. A typical 2-cup bowl of tomato soup can have upwards of 80 grams of sugar.

Granola
Sure, granola contains a lot of fiber. But most granolas come packed with sugars in various forms. One cup of Kellogg's Low-fat Granola with Raisins contains an incredible 72 grams (net) carbohydrates, of which 25 grams are sugar.


Given modern appetites and serving sizes, you can see that it is very easy to get carried away and, before you know it, get exposed to extraordinary amounts of sugar and carbohydrates eating foods you thought were healthy.

And don't be fooled by claims of "natural" sugar. Sugar is sugar--Just check your blood sugar and you'll see. So raw cane sugar, beet sugar, and brown sugar have the same impact as white table sugar. Honey, maple syrup, and agave? They're worse (due to fructose).

How low should blood sugar be?

28. February 2010 William Davis (0)
What should your blood sugar (glucose) be after eating?

Take a look at the data from the Whitehall study reported in 2006. The Whitehall Study stands apart from other studies in that it was very large (over 18,000 participants) who were observed for an unusually long time (33 years). All participants were administered a 50 gram glucose "challenge" at the start with glucose levels checked after the glucose challenge.

Here's what they found:




From Brunner et al 2006.

Heart attack guaranteed

10. December 2006 William Davis (0)
What if you knew for a fact that your risk for heart attack was 100% by, say, age 58? This is indeed true for many people, though at age 60, 65, 70--or 45.

In other words, unless something were done about the causes of heart disease, you would inevitably suffer a heart attack at 58.

What sort of action could you take at age 45?

Obviously, not smoking is an absolute requirement. Continue and you may as well start getting your affairs together.

How about exercising and eating a generally healthy diet? Will your risk be reduced to zero? No. It might be reduced 20-30%, depending on genetic factors.

How about a statin drug? Watch TV ads during Oprah, and you might think it's a cure. But in reality, while it is a financial bonanza for the drug manufacturers, it will reduce risk for heart attack by 30%.

(Note that risk reduction by following multiple strategies is not necessarily additive. In other words, if you have a healthy lifestyle and take a statin agent, is risk reduced 60% (30 + 30)? No, because the effects may overlap.)

So, eating healthy, exercising, and taking a statin drug might reduce risk 35-40%, maybe 50% in the best case scenario. Would you be satisfied? Most would not.

Add fish oil at a truly therapeutic dose. Risk reduction by itself: 28%.

Add niacin or other strategies for correction of your individual, specific causes of heart disease: Now we're up to 90% reduction.

Throw in a tracking process to prove whether or not atherosclerotic plaque has progressed or reversed. Now we're approaching 100% if plaque reverses. The only way I know how to track plaque is through CT heart scans. What other test is readily available to you with low radiation exposure, yet is relatively inexpensive and precise? It certainly is not stress testing, heart catheterization, CT angiograms, or other techniques. Cholesterol won't tell you. Besides CT heart scans, there's nothing else I know of.

Let's fact it: For many people, uncorrected risk for heart attack is truly 100% at some age. Take action while you can.

That, in a nutshell, is the Track Your Plaque program.

Heart scan curiosities 3

10. December 2006 William Davis (7)


This is a sample image from the heart scan of a 54-year old, 212 lb, 5 ft 2 inch woman. The heart is the whitish-gray in the center; lungs are the dark (air-filled) areas on either side of the heart. Note the massive amount of surrounding gray tissues that encircles the heart and lungs. This is fat. At this weight, the diameter of total fat exceeds the combined diameter of the heart and lungs. If we were to show the abdomen, there would be even more fat. (The image shows the body not well centered because the technologist centers the heart, since this is, after all, a heart scan.)





This is a 55-year old, 151 lb, 5 ft 4 inch woman. Note the contrast in the quantity of fat tissue surrounding the chest, a much more normal appearance. Note that this woman is still around 25 lb over ideal weight, but not to the extreme degree of the woman above.

Another curious observation: Note the more whitish streaking in the heavier woman's lungs. Heart scans are performed while holding a deep inspiration (a deep breath inwards), mostly to eliminate lung respiratory motion during image acquisition. Nonetheless, the heavier woman's lungs are not as fully expanded as the more slender woman. In other words, the heavier woman cannot inflate her lungs as effectively as the thinner woman. Ever notice how breathless heavy people are? Some of this effect is just being out of shape. But there's also the added effect of the abdominal fat exerting upwards compression on the lung tissues, and the constrictive effect of the encircling fat mass. At the beginning of inspiration, the chest fat exerts the resistance of inertia to inspiration that is absent, or less, in a slender person. With each breath, the heavy woman must move 50 lbs or so of surrounding fat mass just to inhale.

The heavier woman is, in effect, suffocating herself in fat.

The distortions to the human body incurred by extreme weight gain are both fascinating and shocking. I hope you're breathing easily.

The shameful "standard of care"

10. December 2006 William Davis (1)
John's initial heart scan four years ago showed a score of 329. His physician prescribed Zocor for a somewhat high LDL cholesterol.

One year later, John asked for another scan. His score: 385, a 17% increase. John exercised harder and cut his fat intake.

This past fall--3 years after his last scan--John had yet another heart scan. Score: 641, a 66% increase over the last scan, all the while on Zocor.

John sought an opinion from a reputable cardiologist. He concurred with the prescription of Zocor and advised annual stress tests. That's it.

Followers of the Track Your Plaque approach know that the expected uncorrected rate of increase in heart scan score is 30% per year. On Zocor or other cholesterol reducing statin agent, a common rate of growth is between 18-24% per year--better but not great. Plaque growth is certainly not stopped.

But that is the full extent of interest and responsibility of your cardiologist. Prescribe a statin drug, perform a stress test, and the full extent of his obligation has been fulfilled. In legal terms, your physician has met the prevailing
"standard of care". No more, no less.

In other words, the prevailing standard of care falls shamefully short of what is truly possible. For the majority of the motivated and interested, coronary plaque reversal--reduction of your heart scan score--should be the standard aimed for. It's not always achievable, but it is so vastly superior to the prescribe statin, wait for heart attack approach endorsed by most cardiologists.

Heart scan curiosities 2

9. December 2006 William Davis (2)


This is an example of a so-called "hiatal hernia", meaning the stomach has migrated through the diaphragmatic hiatus into the chest--the stomach is literally in the chest. This example is an unusually large one. Hiatal hernias can cause chest pain, indigestion, and a variety of other gastrointestinal complaints. Heart scans are reasonably useful to screen for this disorder, though very small ones could escape detection by this method.

Sometimes, you can actually hear the gurgling of stomach contents (the common "growling" stomach) by listening to the chest. Large ones like this actually crowd your heart (the gray structure above the circled hernia), irritating it and even causing abnormal rhythm disorders. The dense dark material within the hernia represents lunch.

I would not advocate CT heart scans as a principal method to make a diagnosis, but sometimes it just pops up during a heart scan and we pass it on to the person scanned.

Vitamin D: New Miracle Drug

6. December 2006 William Davis (0)
At the meetings of the American Society of Bone and Mineral Research, Dr. Bruce Troen of the University of Miami detailed his views on the extraordinary benefits of vitamin D replacement. He also talked about the enormous problem of unrecognized vitamin deficiency.

“There’s a huge epidemic of hypovitaminosis D, and the real key here is not just that it’ll benefit you from a bone and neuromuscular standpoint, but if you correct hypovitaminosis D and the corresponding secondary hyperparathyroidism, then you’re going to decrease prostate cancer, colon cancer—actually “up to 17 different cancers, breast cancer included.”

Unfortunately, Dr. Troen did not talk much about the heart benefits of vitamin D, likely since the data is scant, nearly non-existent. However, if the Track Your Plaque experience means anything, I predict that vitamin D replacement will become among the most powerful tools you can use to gain control over coronary plaque.

Read the text of a report from the Internal Medicine World Report to read more of Dr. Troen's comments.


http://www.imwr.com/article.php?s=IMWR/2006/11&p=40

Heart disease "reversal" by stress test

5. December 2006 William Davis (3)

Here's an interesting example of a 71-year old man who achieved "reversal" of an abnormality by a nuclear stress test.

This man underwent bypass surgery around 10 years ago, two stents three years ago. A nuclear stress test in April, 2005 showed an area of poor blood flow in the front of the heart. On the images, normal blood flow is shown by the yellow/orange areas. poor or absent blood flow is shown by the blue/purple areas within the white outline.

Now, I can tell you that this man is no paragon of health. He's only accepted limited changes in his otherwise conventional program--in other words, someone who I'd be shocked achieved true reversal of his heart disease. (I didn't have him undergo any CT heart scans because of the difficulties in scoring someone who has undergone bypass surgery and stents, and because of limited motivation. True plaque reversal is for the motivated.)This patient did, however, accept adding fish oil and niacin to his program.

Nonetheless, stress testing can be helpful as a "safety check". Here's the follow-up stress test:
You'll notice that the blue/purple areas of poor blood flow have just about disappeared. This occurred without procedures.

Does this represent "reversal"? No, it does not. It does represent reversal of this phenomenon of poor flow. It does not represent reversal of the plaque lining the artery wall. That's because improvement of flow, as in this man, can be achieved with relatively easy efforts, e.g., improvement in diet, statin drugs, blood pressure control, etc. True reversal or reduction of coronary plaque, however, is tougher.

If blood flow is improved, who cares whether plaque shrinks? Does it still matter? It does. That's because the "event" that gets us in trouble is not progressive reduction in blood flow, but "rupture" of a plaque. A reduction in plaque--genuine reversal--is what slashes risk of plaque rupture.

Calcium reflects total plaque

4. December 2006 William Davis (0)




People frequently ask, "Why measure coronary artery calcium? My doctor said that calcium only tells you if there's hard plaque, and that hard plaque is stable. He/she says that calcium doesn't tell you anything about soft plaque."

Is that true? Is calcium only a reflection of "hard" plaque? Is hard plaque also more stable, less prone to rupture and causes heart attack?

Actually, calcium is a means of measuring total plaque, both soft and hard. That's because calcium comprises 20% of total plaque volume. Within plaque, there may be areas that are soft (labeled "lipid pool" in the diagram). There are also areas made of calcium (shown in white arcs within the plaque). Even though this is just a graphic, it's representative of what is seen when we perform intracoronary ultrasound of a live human being's coronary artery. In other words, this cross section contains both "soft" (lipid pool) as well as "hard" (calcium) elements.

Is this artery "soft" or "hard"? It's both, of course. The artery compostion can vary millimeter by millimeter, having more soft or hard elements. The artery can also change over time in either direction. Thus, "soft" plaque may indeed be soft today, only to be "hard" in 6 months, and vice versa.

The essential point is that measuring just "soft" plaque provides limited information. What the CT heart scan does is provide a gauge of total plaque, soft and hard, and it does so easily, safely, precisely. If your score increases, the lengthwise volume of total plaque has also grown. If your score decreases, the total amount of plaque has also decreased.

Don't mistake marketing for truth

2. December 2006 William Davis (0)
We're all so inundated with marketing messages for food. Unfortunately, many people confuse the messages delivered through marketing with the truth.

For instance:

Pork: "The other white meat." Pork is a high-saturated fat food.

"Bananas: A great source of potassium." Bananas are a high glycemic index (rapid sugar release), low fiber food.

"Pretzels: A low-fat snack." A high glycemic index food made from white wheat flour. It makes you fat and skyrockets blood sugar.

Jif peanut butter: "Choosy moms choose Jif." Do they also choose hydrogenated fats?

Hi-C: Upbeat jingles like "Who put the straw in my Hi-C fruit drink, a new cool straw that wriggles and bends? Who put the straw in my Hi-C fruit drink, with Vitamin C for me and my friends? Who was that man, I'd like to shake his hand, he made my Hi-C cooler than before!" What about the 25 grams of sugar per 4 oz serving? And the high fructose corn syrup that creates an insatiable sweet tooth, raises triglycrides 30%, and exagerates pre-diabetes?


Marketing is not reliable, unbiased information. If Ford boasts that their cars are superior to GM, do you say "Well then, I need to buy a Ford?" Of course not. Take marketing for what it is: A method of persuading people to buy. It may or may not contain the truth. It's a big part of the reason Americans are the fattest people on earth and are experiencing an explosion of chronic diseases of excess.

Tattered Red Dress

1. December 2006 William Davis (0)
"Are you taking your health to heart? Perhaps you understand the importance of eating a diet low in cholesterol or getting 30 minutes of exercise a day. But do you know your own risk of developing cardiovascular disease?


It’s time to take your heart health personally. Heart disease is the No. 1 killer of American women — and that means it is not “someone else’s problem.” As a woman, it’s your problem.

That’s where the Go Red Heart Checkup comes in. This comprehensive evaluation of your overall heart health can help you now and in the future. By knowing your numbers and assessing your risks now, you can work with your doctor to significantly reduce your chances of getting heart disease tomorrow, next year, or 30 years from now!"


So reads some of the materials promoted by the American Heart Association Red Dress campaign to increase awareness of heart disease in women. The effort is well-intended. There is no doubt that most women are unaware of just how common coronary disease is in females.

But I've got a problem with the solutions offered. "Know your numbers"? Eat healthy, don't be overweight, be active, don't smoke. That's the gist of the program's message--nothing new. In 2006, why would some sort of screening effort for detectin of heart disease not be part of the message? Why isn't there any message about the real, truly effective means to detect hidden heart disease in women--namely, heart scanning?

Does a 58-year old woman with normal blood pressure, LDL 144, HDL 51, 20 lbs overweight have hidden heart disease? I've said it before and I'll say it again: You can't tell from the numbers. She could die of a heart attack tomorrow without warning, or maybe she'll be dancing on our graves when she's 95 and never have experienced any manifestation of heart disease. The numbers will not tell you this.

I'm glad the American Heart Association has seen fit to invest its sponsors' money in a campaign to promote prevention. I wish they hadn't fallen so far short of a truly helpful message. Perhaps the sponsors (like Pfizer, maker of Lipitor) will benefit, anyway.

Panic in the streets

29. November 2006 William Davis (0)
Several days ago, I wrote about a local prominent judge in my neighborhood who was unexpectedly found dead in bed of a heart attack at age 49.

As expected, I've received multiple calls from patients and physicians who want heart catheterizations. For instance, an internist I know called me in a panic. He asked that I perform a heart catheterization in a patient with a heart scan score of 768. I've been seeing this patient for about a year. He's without symptoms, even with strenuous exercise; stress tests (i.e., tests of coronary bloow flow) have been normal.

I remind patients and colleagues every day, day in day out: Having a heart scan score revealing some measure of coronary plaque is not a sufficient reason by itself to proceed with procedures. Fear of suffering a fate like the unfortunate judge is also not a reason to proceed with procedures.

Increased awareness of the gravity of heart disease is a good thing. Some good can come out of a needless tragedy like this. The lesson from the judge's unfortunate experience: he needed a CT heart scan. I'm told that the judge's doctor advised him that a heart scan was a waste of time. I hope that appropriate legal action for negligence is taken by the judge's family against this physician.

Not doing a heart scan is wrong. That's the lesson to learn. The lesson is not that everybody with coronary plaque needs a procedure. Had the judge undergone a simple heart scan, intensified prevention could have been instituted and he'd still be alive with his wife and children today.

The indications for procedures are unchanged by your heart scan. If a stress test is abnormal and indicates poor flow to a part of the heart, that would be a reason. If symptoms like chest discomfort or breathlessness appear, that's an indication. If there's evidence of poor heart muscle contraction, that's a reason to proceed with a procedure. But just having coronary plaque is not a sufficient reason.
All posts by william-davis

Olive oil for gourmets

19. October 2006 William Davis (0)
"The finest extra-virgin olive oils should not be used as a medium for hot cooking, but rather as a condiment or a finisher on top of your favorite savory foods. They are expensive, but if stored properly they will last for up to a year..."

You all know that olive oil is among the preferred oils to use: rich in monounsaturates, low in saturates, high in polyphenols.




For a fascinating perspective for the olive oil gourmet, go to www.npr.org, the website for National Public Radio. (Scroll down to the article or enter olive oil into their site search.) Their article, "Like fine wines, fine olive oils boast subtle joys" provides an insightful discussion on squeezing maximum enjoyment out of this wonderful "functional food".

As we emerge from the mis-directed low-fat craze of the past 20 years, we're re-discovering the joys of healthy oils. You'll find some great thoughts here

Vitamin D must be oil-based

18. October 2006 William Davis (10)
As part of the Track Your Plaque coronary plaque reversal program, we advocate vitamin D supplementation. Vitamin D has been shown to reduce blood sugar and reduce pre-diabetic tendencies, reduce blood pressure (it's a renin antagonist, a blood pressure hormone), it's far more important for bone health than calcium, and it may help prevent colon cancer, prostate cancer, and multiple sclerosis.

And, oh yes, it may facilitate coronary plaque regression.

One lesson I've learned is that vitamin D MUST be taken as a oil-based capsule or gelcap. You'll recognize it as a transparent or translucent, sometimes opaque, capsule. The list of ingredients may say something like "cholecalciferol [vitamin D] in a base of soybean oil", indicating that the active ingredient is oil-based. Oil-based vitamin D3 skyrockets blood levels of 25-OH-vitamin D3 in to the normal range reliably and easily.


Tablets are a different story. These are generally white powdery tablets. The rise in blood levels of vitamin D3 are minimal, sometimes none. Women will often say "I get vitamin D with my calcium tablets."


People taking this form almost always have blood levels of vitamin D that are low, as if they were taking nothing.
If you're going to take vitamin D, the oil-based tablets are the way to go. They're not necessarily any more expensive. We've had good experiences with the Nature's Life 2000 unit capsule, as well as preparations from Life Extension. We have had negative experiences with the preparations from GNC, Sam's Club, and Walgreen's, all tablets and non-oil-based.

When is LDL cholesterol NOT LDL cholesterol?

18. October 2006 William Davis (0)
Darlene had a high LDL cholesterol, at times as high as 200 mg/dl. Her primary care doctor first tried Mevacor, then Pravachol, then Zocor, then Lipitor. Every statin drug failed to reduce Darlene's LDL below 160 mg/dl, even when maximum doses were used. The higher doses also resulted in nearly intolerable muscle aches and weakness.

When we sent Darlene's blood sample off for lipoprotein analysis, a surprise came back: she had a high lipoprotein(a), or Lp(a). This explained a lot.

LDL cholesterol is not always just LDL cholesterol. One of the particles that can masquerade as LDL is Lp(a). Darlene's story is typical of many people who've had high cholesterol levels poorly responsive to the statin drugs. That's because their LDL conceals Lp(a), which does not respond to these agents. LDL cholesterol does drop some because there's also some real LDL mixed in.

A poor response to statin agents or to nutritional strategies to reduce LDL is a tip-off that Lp(a) may be hidden. The answer: just measure Lp(a)! If you and your doctor don't measure it, you won't know whether or not you have it. Rather than a statin drug, we put Darlen on niacin. Not only did her Lp(a) drop, but her LDL also plummeted.

What is a desirable triglyceride level?

17. October 2006 William Davis (0)

Though well-intended, the National Cholesterol Education Panel's Adult Treatment Panel, or ATP-III, (whew!) guidelines for cholesterol have been responsible for loads of misinformation.

The intention was to educate the internist or family doctor who treats sore throats, performs Pap smears, administers pneumovax vaccine, treats arthritic knees---and dabbles in heart disease prevention. The ATP-III guidelines are the "Cholesterol for Dummies" approach.

What standard guidelines definitely do not represent are the ideal values to achieve. They do not ensure protection from heart disease. This is particularly true of the ATP-III advice to keep triglycerides at or below the "desirable" level of 150 mg/dl.

In the Track Your Plaque program, we ask "What is necessary to tip the odds in favor of coronary plaque regresion or reduction of heart scan score?" This is not achieved with a triglyceride of 150. In fact, triglycerides at this level are associated with flagrant abnormalities of lipoprotein patterns. It usually means that processed carbohydrates, particularly wheat products, are occupying too prominent a role in your food choices. It could mean that you're making excessive use of processed foods containining high-fructose corn syrup. It will not respond to a low-fat diet. It will, however, respond vigorously to fish oil.

Triglycerides are a crucial aspect of your plaque control program. We aim for 60 mg/dl or less. The ideal level is actually 45 mg/dl. At this level, all abnormal triglyceride-containing lipoproteins finally go away.

Super size me in little bits and pieces

17. October 2006 William Davis (1)


Alvin came into the office for consultation on his cholesterol values: LDL 198 mg/dl, HDL, 43 mg/dl, triglycerides 143 mg/dl. He says that he doesn't really try to choose healthy foods but he restricts his overall calorie intake by following the Weight Watcher's exchange approach.

Every morning, 7 days a week, Alvin eats a Sausage McMuffin for breakfast. He justified this by skipping lunch to make up for the 450 calories in the Sausage McMuffin, and not eating anything until dinner.

Can this work? Can you eat foods with unhealthy ingredients but make up the excessive calories by cutting back elsewhere?

The nutritional composition of McDonald's Sausage McMuffin includes 27 grams of total fat (10 gm saturated); 255 mg cholesterol; 950 mg sodium; 31 gm carbohydrate; 2 grams fiber. In other words, it's essentially the same as butter with sugar on it--pure fat, processed wheat, with little fiber or nutritive value.

For Alvin, this is an extremely unhealthy way to eat. His lipid patterns are just the tip of the iceberg: multiple hidden factors are also at work to create heart disease, atherosclerosis in other territories outside the heart, diabetes, high blood pressure, and cancer.

I think the effects are not much different than what Morgan Spurlock achieved in his Super Size Me documentary, but in little bits and pieces. Eating at McDonald's "restaurants" three times a day yielded frightening changes in his lipids, liver function, kidney function, not to mention his appearance and the way he felt. Alvin is doing the same thing, though in less dramatic fashion.

I see this very frequently: people mimicking the experience of Spurlock, just a little at a time, with overindulgence in processed fats and starches.

When you seen a set of Mcdonald's golden arches (or any fast food restaurant, for that matter), run as fast as you can in the other direction. Such indulgences, even in small bits and pieces, still creates a mess of your health.

View from the precipice

15. October 2006 William Davis (0)

Many people, upon first learning of their CT heart scan score, feel like they're on the edge of a sharp drop. It can feel like you're facing a vast, unknown abyss. At the bottom, all those dreaded things that can happen to you: heart attack, heart failure, hospitals, even dying.

I've encountered this "deer in the headlights" look many times. It truly can be frightening to hear that your heart scan score is 300, or 500, or whatever.

What I find truly frightening, however, is when your score prompts the usual array of misinformation commonly dispensed by physicians: "That's so bad you need a heart catheterization", "Nobody knows why people get calcified plaque", or "Reversal is impossible". All absolute bunk.

Let your fear motivate you to do something about your risk for heart disease. Aim for reversal of your coronary plaque and seek out the tools to achieve this. It is possible and, in fact, we do it all the time. I can't claim 100% success, but the majority of people who engage in an effort like the Track Your Plaque program to reverse coronary plaque succeed. Even a substantial slowing of plaque growth from the expected 30% per year is better than submitting to the conventional approach.

At the very least, get both LDL and HDL cholesterol around 60 mg/dl. This alone is a major plus in reducing the risks associated with your heart scan score. It doesn't guaranteee reversal, but it sure tips the odds in your favor.

Organic Rice Krispies?

13. October 2006 William Davis (0)


Breakfast cereal manufacturing giant, Kelloggs, is launching a line of three cereals that will carry the "organic" designation: Organic Rice Krispies, Organic Raisin Bran, and Organic Frosted Mini-Wheats.

This reminds me of the advertisements I've seen for "fresh fried chicken", or "fresh from the can", or "contains only pure cane sugar". How about organic tobacco? Would that make cigarettes healthier?

The TV ad ends with the slogan "Childood is calling!" Oh, those marketers are a shrewd, clever bunch. I worry that they're so clever that most people will fall for these ludicrous tricks.

Don't fall for these thinly-shrouded marketing shenanigans. Organic? Who cares. These foods remain unhealthy whether or not they contain pesticide residues. Take a look at the nutritional composition: Rice Krispies, organic or not, is sugar to your body. It is the sort of food that creates pre-diabetes, diabetes, makes us fat, and fans the flames of lipoprotein patterns like small LDL, VLDL, and postprandial particles, all of which is like throwing cow manure on the weed patch of your coronary plaque.

Nuts as functional foods

13. October 2006 William Davis (0)
Food manufacturers gave nuts a bad name when they started adding evil ingredients to them. "Party mix", "honey-roasted", mixed nuts, etc., are made with added hydrogenated oils, salt, sugar, excessive quantities of raisins, or other added ingredients that turned a healthy food--nuts--into something that made us fat and hypertensive, raised LDL, dropped HDL, and raised blood pressure.

But nuts themselves are, for the most part, very healthy foods. The very best are nuts with a brown fiber coating like almonds, walnuts, and pecans. Nearly all nuts also come rich in monounsaturated oils similar to that in olive oil. Although calorie-dense, nuts tend to be very filling and slash your appetite for other foods. I have never seen anyone gain weight by adding raw nuts to their diet. In fact, I find adding raw nuts cuts craving for sweets.

Nuts are also among the most concentrated sources of magnesium, containing around 150 mg per 1/2 cup serving. As most Americans are at least marginally if not severely deficient in magnesium, this really helps. Magnesium deficiency is a prominent aspect of "metabolic syndrome" and resistance to insulin.




Some nuts have added benefits like the l-arginine content of almonds or the linolenic acid content of walnuts. However, I think the real health "punch" comes from the fiber and monounsaturate content.

Add 1/4-1/2 cup of raw almonds, walnuts, or pecans per day to your diet and what can you expect? The effects that I see every day that are relevant to plaque control/heart scan score-reducing efforts include:

--Reduction in LDL--usually a 20 mg/dl drop, sometimes more.

--Reduction in triglycerides, especially if nuts replace processed carbohydrate calories. This may be because the fiber and monounsaturate content of nuts reduces blood sugar and the effective glycemic index of any accompanying foods.

--Modest blood pressure reduction.

--Though somewhat inconsistent, partial suppression of the dreaded small LDL particle pattern. We struggle with turning off the small LDL pattern in some people, and raw nuts can provide a real advantage.

If that isn't enough, the fiber content also makes your bowels regular.

Unless there's some reason to avoid nuts (e.g., allergy), nuts should be a part of your heart scan score reducing program. Shop around, as prices can vary wildly. I've been paying $12.99 for a 3 lb bag of raw almonds from Sam's Club, though I've seen almonds elsewhere for up to $12.99 per pound.

For additional commentary, go to one of my favorite Blogs, http://fanaticcook.blogspot.com. The Fanatic Cook's recent post, The Season for Walnuts , provides additional discussion on walnuts and the recent study showing how they improve "endothelial function". The nutritionist behind this Blog has fabulous insights into food, including the concept of "functional foods", i.e., using foods as a treatment tool. She is also unfailingly entertaining.

Can you tell the difference?

12. October 2006 William Davis (0)
Stan is 55 years old. He feels fine, is in moderately good physical condition. His LDL cholesterol is 135 mg/dl, HDL 43 mg/dl, triglycerides 167 mg/dl, total cholesterol 211 mg/dl.

Can you tell me whether Stan has heart disease or not?

How about Charles? Charles has an LDL cholesterol of 127 mg/dl, HDL of 44 mg/dl, triglycerides of 98 mg/dl, and total cholesterol of 191 mg/dl. He is also reasonably fit and feels fine. Can you tell whether Charles has heart disease?

If you can't, don't feel bad. Neither can your doctor. But this is the folly of using cholesterol for risk prediction.

Stan's heart scan score: 0

Charles' heart scan score: 978

Look even more closely at Stan's and Charles' cholesterol numbers. Is there some fine distinction we overlooked? What if we calculated total cholesterol to HDL ratio? Or LDL/HDL ratio?

No matter how you squeeze it, shake it, beat it with a stick, you simply cannot use cholesterol numbers to predict heart disease in specific individuals. Yes, the higher your LDL cholesterol and lower your HDL, the higehr your total cholesterol to HDL ratio, the greater the likelihood of heart disease. But you can simply cannot tell in a specific individual at a specific point in time. If you've seen your doctor puzzle over the numbers, understand that he/she is trying to make sense out of something that doesn't make sense, no matter how hard he/she tries.

You simply need to measure the disease itself: get a CT heart scan, the only measure of atherosclerotic coronary plaque that you have access to.

By the way, if you haven't seen it yet, go to the Track Your Plaque website (www.cureality.com) to see the news piece reporting the American Heart Association's much overdue position statement on CT heart scanning. The AHA has finally released a statement which, in effect, provides their "official" endorsement. Blocked by political shenanigans behind the scenes for several years, the guidelines finally made it to press. The only real difference it makes to me is that my patients may finally get their heart scans paid for by insurance, once the insurance companies realize that it's getting tougher and tougher to dodge their responsibility.

Statin agents and muscle aches

11. October 2006 William Davis (2)
How common are muscle aches with the statin drugs?

It depends on who you ask. If you ask the drug manufacturers, they will tell you no more than 2% of people who take them. They back this up with the experience in tens of thousands of people in published clinical trials.

What if we ask people who take them outside of clinical trials. How many then? I estimate, from my large experience, over 80%! In other words, muscle aches are inevitable in nearly everyone who takes them. The longer you take them, the higher your dose, the more likely muscle aches are going to be.

Why the disconnect between published data and real-world experience? I really don't know. In some instances, the differences are dramatic. The ASTEROID trial, for instance, in which Crestor, 40 mg, was given for two years, only resulted in 8% of people dropping out because of side-effects. My experience: everybody--nobody can tolerate this dose for any length of time.

Let me qualify what "muscle aches" mean. It means achiness and/or weakness, usually mild, occasionally moderate to severe, worse upon awakening and less with use. It can affect many muscles or it can involve only one. Rarely is it incapacitating but it is commonly annoying and frightening. It commonly shows up as gradually diminishing strength with exercise. Strength usually returns promptly upon stopping the offending drug.

"Rhabdomyolysis", or true muscle destruction is, fortunately, very unusual in otherwise well people. People with abnormal kidney function, diabetes, and other concurrent illnesses are somewhat more prone. But in reality, rhabdomyolysis is unusual. I've personally seen it twice, both in people sick for other reasons.

Coenzyme Q10 (CoQ10) supplementation has been a godsend for us. At least 4 out of 5 people who require statins and develop muscle aches respond favorably, but it requires 100 mg per day. The preparation must be oil-based to work, not powder in a capsule which exerts no effect. Some people get by with less; some require as much as 300 mg per day. I've had favorable experiences with the CoQ10 from Sam's Club, GNC, Vitamin Shoppe, and Life Extension (www.LEF.org).

The Track Your Plaque target for LDL cholesterol is 60 mg/dl. Many people do indeed use statins to achieve this level, the level of LDL that amplifies your chances of heart disease reversal, i.e., reduction of heart scan score. The only drawback that I'm aware of with CoQ10 replacement is cost. Beyond this, it's a benign supplement that even supplies higher energy for some people who take it.