Vitamin D toxicity

6. February 2008 William Davis (26)

It is the craziest thing.

The notion of vitamin D being easily and readily toxic has grabbed hold of many people, including my colleagues who were taught that vitamin D was toxic in medical school based on the skimpiest (and often misinterpreted) observations in a handful of unusual cases.

In my practice and in the Track Your Plaque program, we routinely use doses of 2000-10,000 units per day, occasionally more. We are guided by blood levels of 25(OH) vitamin D3. I have personally never witnessed vitamin D toxicity.

Here's an interesting graph from Dr. Reinhold Vieth. Those of you familiar with the vitamin D argument know that Dr. Vieth is among the few genuine gurus in the vitamin D world.

From Vieth R. Vitamin D supplementation, 25-hydroxyvitamin D concentrations, and safety. Am J Clin Nutr 1999;69:842-856. (Full text is available without charge.)

In the graph, the X's represent toxicity; circles fall within the non-toxic range. (Toxicity is generally defined as a level sufficient to raise blood calcium levels, "hypercalcemia.") Note that the 25(OH) vitamin D3 levels are given in nmol/L; to convert to ng/ml units that are customary in the U.S., divide the nmol/L value by a factor of 2.5.

You will notice that toxicity is virtually unheard of until the dose exceeds 10,000 units per day. Beyond 10,000 units per day, the curve heads upward sharply and toxicity does become a possibility, though not an absolute (since there are circles above 10,000 units).

You may also notice that the curve is relatively flat from vitamin D doses between 200 units and 10,000 units (log scale on x axis; arithmetic scale on y), the range of most common doses for vitamin D supplementation.

Another perspective on vitamin D blood levels is to examine the blood levels of people who are young and obtain plentiful sun exposure. Lifeguards, for instance, have blood levels of 84 ng/ml (210 nmol/L) without ill-effect. (Sun exposure cannot generate vitamin D toxicity, because of a feedback safety mechanism in skin.) While this may not represent an ideal level since they represent an extreme, it does provide reassurance that such levels are non-toxic. I also point out these levels occur in the youthful since most people lose 75% or more of vitamin D activating capacity in the skin by their 70s. Most of us over 40 are kidding ourselves if we think that a suntan provides sufficient vitamin D.

Keep in mind that it is not necessarily the dose of vitamin D that is toxic, but the blood level it generates. I take 10,000 units of vitamin D as a gelcap per day to maintain my blood level between 50-60 ng/ml (125-150 nmol/L). This strategy helps me keep my HDL in the 70-80 mg/dl range, my blood sugar around 90 mg/dl, my blood pressure <120/80, and I no longer experience colds nor winter "blues."

Copyright 2008 William Davis, MD

Turning plaque into profit

3. February 2008 William Davis (7)

For reasons unknown to me, I received a solicitation to invest in a company called Prescient Medical, with a slogan that caught my eye:

Detect and treat heart attacks before they occur.

The glossy brochure details their technology development strategy:

Predict(TM) Optical Catheter System--A catheter introduced into the coronary artery during a catheterization procedure to determine whether a specific plaque or vessel area is "vulnerable," i.e., prone to rupture in future.

Protect(TM) Luminal Shield--A stent-like metal device deployed into the coronary artery at the region of vulnerable plaque to prevent future plaque rupture.

The company anticipates FDA approval for their systems by 2009 and sales to begin by 2010. They predict sales of $7 billion.

Let's stop and think about this for a moment. It seems to me that, rather than pursuing the market of another stent for a "severe blockage," this company is going after the untapped procedural market of vulnerable plaque. In other words, their technology (an optical sensor technology that emits and analyzes light wavelengths to map specific plaque characteristics) identifies plaque that may rupture in months or years, followed by implantation of stent(s) that presumably prevent plaque rupture.

Thus, conceivably, many 20%, 30%, 40% etc. "blockages", atherosclerotic plaques that do not block flow and thereby pose no need for a conventional stent, will end up with this new type of stent. One patient could therefore receive multiple "Luminal Shields" in a single procedure.

When would these devices be employed? One pathway I could conceive of that my colleagues will be sure to exploit is 1) identify plaque by CT angiography, then 2) bring patient to the catheterization laboratory and perform this procedure for whatever hot, vulnerable plaques are identified. In other words, symptoms are no longer necessary. Reduced blood flow is no longer necessary. An abnormal stress test is no longer necessary. All that is required is that you have plaque. If the plaque is then determined to be vulnerable, then it is stented.

What bothers me about all this is the emerging effort to exploit this untapped market--a big one--of early heart disease as identified by coronary atherosclerotic plaque. As heart scans have demonstrated, there is an enormous amount of hidden heart disease in this world. This company has discovered a way to turn plaque into a profit opportunity, much as the statin drug industry found a way to "turn cholesterol into money."

The conventional stent market has plateaued and now has been, to some degree, battered by the drug-coated stent argument. Prescient has found a new and significant market for procedures and stents.

Is this really necessary? Why does plaque have to become a procedural disease? Doesn't it make more sense that, if vulnerable plaque is identified, that clinical trials are then designed to develop treatment strategies that modify vulnerable characteristics? Shockingly, this has not been done to any significant extent. Instead, the easiest path to a profit opportunity is to implant a "Luminal Shield."

You and I are able to inactivate, disempower, and essentially shut down plaque, while others are working furiously to convert it into a procedural profit opportunity. I personally find this so distasteful that I would sooner endorse a high-dose statin strategy than this approach.

You can view a video of my colleague, Dr. Martin Leon, on the Prescient Medical website, (or click here to go directly to the video), talking about how this technology will "change the treatment paradigm of the interventionalist from reactive to proactive." Scary stuff. Dr. Leon has made millions of dollars (probably more like tens of millions of dollars) from his support of technology companies for the interventional coronary device market.

My hope is that word of the sorts of techniques we use in the Track Your Plaque program disseminate before this sort of luminal coating idiocy gets off the ground.

(In actuality, a different version of this approach has been available for years using intravascular ultrasound (IVUS), another procedure that involves threading a catheter down each coronary artery during a catheterization procedure. IVUS can also cross-sectionally map a plaque's anatomy and identify "vulnerable" features, like a thin cap overlying a collection of semi-liquid fat ("lipid pool"). There has been some discussion of using this approach to identify vulnerable plaque followed by stent implantation, but it has never gotten off the ground and has certainly not found validation in any clinical study. By the way, any stent prevents plaque rupture, since by their very nature, the plaque contents are compressed, modified, and excluded to the exterior of the stent. Plaque rupture within a stent is very rare in its few millimeters of length. It may therefore not require some new technology to prevent plaque rupture.)

Statin mono-failure

1. February 2008 William Davis (6)

Evan's first heart scan score in November, 2006 yielded a high score for a 56-year old male: 542.

So he put up little fuss when his doctor prescribed simvastatin at a high dose.

Evan's LDL cholesterol before simvastatin: 158 mg/dl

Evan's LDL cholesterol on simvastatin: 72 mg/dl.

By conventional standards, Evan has had an excellent response. The rest of his lipid (cholesterol) panel was unrevealing: HDL 62 mg/dl, triglycerides 78 mg/dl. Evan doesn't smoke, has a normal blood pressure, and he is not diabetic. That should do it, right?

So his doctor thought. So Evan asked if another heart scan was in order. In December, 2007, after one year of simvastatin, his second heart scan score: 705--a 30% increase over one year.

Recall that, with no effort at prevention whatsoever, the natural progression of heart scan scores is a 30% per year increase. Did simvastatin do nothing?

This is quite typical of people who do nothing more than take a statin drug. While some people do slow plaque growth (we say "decelerate") modestly on a statin drug, Evan's experience is not unusual: plaque continues to grow despite high-dose statin drug and an apparently favorable cholesterol panel.

In fact, I can count the number of people who reduced their heart scan scores taking a statin drug alone on one finger.

Statins do not represent a cure for heart disease. They cannot be used as sole therapy to reduce risk for heart attack. In fact, given sufficient time, the majority of people who do nothing more than follow this standard line of treatment (along with the equally lame low-fat diet, etc.) will have done nothing more than postpone their heart attack. Elimination of risk? Nope.

This is among the reasons we developed the Track Your Plaque approach. While not foolproof, I know of no better approach to seize control over plaque growth.

Additional conversations on clinical studies which, as with Evan's experience, demonstrated how statin drugs fail to slow plaque growth can be found in previous Heart Scan Blog posts:

Don't be satisfied with "deceleration"

Study review: Yet another Lipitor study

Copyright 2008 William Davis, MD

Triglyceride traps

31. January 2008 William Davis (17)

Triglycerides are a potent trigger for coronary plaque growth.

Triglycerides in and of themselves probably do not cause plaque growth. Instead, triglycerides contribute to the formation of abnormal lipoproteins in the blood that, in turn, trigger coronary plaque, like VLDL, intermediate-density lipoprotein (IDL), and small LDL. Excess triglycerides also modify HDL structure and cause you to lose HDL in the urine.

I see plenty of people who begin with triglycerides of 200 mg/dl, 300, 700, even over 1000 mg/dl. It doesn't take long before you learn what works, what doesn't to reduce triglycerides. This is especially true in the Track Your Plaque approach, in which our target for triglycerides is 60 mg/dl or less.

Here's a list of things to consider if you are trying to gain control of your triglycerides:

--Fish oil--A mainstay of treatment. The omega-3 fatty acids from fish oil are the number one most potent treatment for high triglycerides.

--Reduction of high-glycemic index foods--Most notably wheat. Everybody knows that we shouldn't eat Snickers bars or bags of licorice. But many people eat plenty of wheat-containing breads, pastas, pretzels, crackers, breakfast cereals, etc., all in the name of increasing whole grains and fiber. In reality, they are causing triglycerides to skyrocket, dropping HDL, forming small LDL, increaaing blood sugar and blood pressure, and increasing obesity.

--Eliminating fructose and high-fructose corn syrup--This ubiquitous sweetener is now consumed in enormous quantities by the average American, nearly 80 lbs per year per person. You'll find it in soft drinks, ketchup, beer, breads, breakfast cereals, and many other processed foods. You'll find none in green peppers, cucumbers, and raw nuts. Fructose causes large rises in triglycerides, as well as diabetic patterns. Don't let "fat-free" claims fool you. Take a look at the ingredients in Kraft Fat-Free Caesar Italian salad dressing, for instance:

Kraft Fat-Free Caesar Italian

Ingredients:
Water, Vinegar, High Fructose Corn Syrup, Corn Syrup, Salt, Parmesan Cheese, Part-Skim Milk, Cheese Culture, Salt, Enzymes, Contains less than 2% of Garlic, Whey, Onion Juice, Autolyzed Yeast Extract, Phosphoric Acid, Worcestershire Sauce, Vinegar, Molasses, Corn Syrup, Water, Salt, Caramel Color, Dried Garlic, Sugar ,Spices, Tamarind, Natural Flavors, Hydrolyzed Soy Protein, Xanthan Gum, Potassium Sorbate and Calcium Disodium EDTA as Preservatives, Dried Garlic, Buttermilk, Spice, Dried Parsley, Caramel Color, Sodium Phosphate, Oleoresin Paprika.

--Alcohol--While a couple of drinks a day raises HDL, exerts anti-inflammatory effects, and reduces blood pressure, more than this begins to raise triglycerides. Although I've come across no formal studies on this question, my gut sense is that beer, in particular, raises triglycerides more than wine or other alcoholic beverages. Could it be the wheat source of beer? Or its high-fructose corn syrup? I don't know, but beer is the least desirable form of alcohol of the choices we have.

Following these simple steps, it is unusual in my experience that you cannot achieve a triglyceride level <60 mg/dl. Rarely do we need to add fibrate drugs or other prescription agents to reduce triglycerides.

Copyright 2008 William Davis, MD

High-dose fish oil for Lp(a)

30. January 2008 William Davis (16)

Lipoprotein(a), or Lp(a), is a problem area in coronary plaque reversal.

While our current Track Your Plaque record holder for largest percentage reduction in heart scan score has Lp(a), it remains among the more troublesome lipoprotein patterns.

One unique treatment for Lp(a) is high-dose omega-3 fatty acids from fish oil. While the data are relatively meager, there is one solid study from Lp(a) expert, Dr. Santica Marcovina of the University of Washington, called "The Lugalawa Study."

In this unique set of observations, 1300 members of a Bantu tribe living in Tanzania were studied. What made this population unusual is the fact that two groups of Bantus lived under different circumstances. One group lived on Nyasa Lake (3rd largest lake in Africa and reputed to have the greatest number of species of fish of any lake in the world) and ate large quantities of freshwater fish providing up to 500 mg of omega-3s, EPA and DHA, per day. Another Bantu group lived away from the lake as farmers, eating a pure vegetarian diet without fish.

Nyasa Lake

This situation among genetically similar stock provided a unique learning opportunity, a chance to assess whether different diets influenced Lp(a) levels.

The results: The fish-eating Bantus had an average Lp(a) level of 14.0 mg/dl. The farming, non-fish eating Bantus had an average Lp(a) of 27.0--a 48% difference. Curiously, a comparison of the apo(a) component of Lp(a) between the groups also showed that the fisherman expressed fewer dangerous small apo(a) forms, despite equal potential to express both.

The Lugalawa Study opens the question of whether similar results can be obtained not by moving to Tanzania and fishing Nyasa Lake, but by mimicking their experience by supplementing high doses of omega-3 fatty acids.

It's an intriguing question. In the Track Your Plaque program, we have no specific experience with this strategy, but it is certainly worth exploring further.

Watch for two upcoming Special Reports on the Track Your Plaque website in which we will be detailing 1)unique strategies for Lp(a) reduction, and 2) the usefulness of high-dose fish oil for coronary plaque reversal.

Interesting enough for a Virtual Clinical Trial?

Image courtesy Wikipedia.

Copyright 2008 William Davis, MD

The many faces of LDL

29. January 2008 William Davis (0)

Pam has an LDL cholesterol of 144 mg/dl.

To most people, this means that she has a mildly elevated LDL value. Many people would respond by cutting the saturated fat in their diet. Most physicians would concur and talk about prescribing a statin drug.

Let me tell you what an LDL cholesterol of 144 mg/dl means to me:

1) It could mean an LDL of all large particles (which is good) or an LDL of all small particles (which is very bad). Or, perhaps it's some combination of big and small. I can't tell which just by knowing that LDL is 144.

Small LDL responds to a diet reduced in processed carbohydrates and wheat flour; large LDL does not. Small LDL responds in an exagerrated way to niacin; large LDL does not. It makes a difference.

2) It could mean that, hidden within LDL, is lipoprotein(a), or Lp(a). Recall that Lp(a) is a high-risk genetic pattern that can provide the false appearance of high LDL cholesterol. If Pam were prescribed a statin drug, it would have little effect and little benefit. (See Red flags for Lipoprotein(a).)

Knowing that Pam has Lp(a) can point us in an entirely different direction than just LDL cholesterol. It might mean high-dose fish oil, a more serious approach to niacin, hormonal treatments like DHEA or testosterone. It might mean more attention to warning your children about the possibility that they, too, might share this genetic trait.

3) It could mean both small LDL and Lp(a) are present simultaneously, an especially dangerous combined pattern that is among the highest risks for heart disease known.

4) Because Pam's LDL of 144 mg/dl was not measured, but calculated, it means that it is subject to tremendous inaccuracy.

In my office, calculated LDL cholesterols can be inaccurate by 50 or 100 mg/dl--commonly. So Pam's LDL of 144 mg/dl could really be 70 mg/dl, or it could be 244 mg/dl. Once again, it's a big difference.

Just like The Three Faces of Eve, the 1957 film in which Joanne Woodward played the three wildly different sides of Eve's personality--the daytime Eve White, the fun-loving and daring Eve Black, and Jane--so can LDL assume several different faces, all with different personalities, different implications.

Accepting LDL cholesterol as LDL cholesterol is a fool's game. It is only a starting point, nothing more. Accepting a statin drug based on LDL is, likewise, a trap fraught with uncertainty, the potential for limited or ineffective results, the price being your heart and health.

Drive-by angioplasty

26. January 2008 William Davis (7)

Don had an angioplasty 6 months ago. When asked about the symptoms that prompted him to go to the hospital, he explained:

"I remember feeling really tired for about a week before I went. I'd read that fatigue can sometimes be a sign of heart disease. But then I had some trouble breathing. You know, like not being able to get a deep breath."

"My wife and I were planning on going on vacation. So I wanted to be certain something wasn't going on in my heart. That's when my wife insisted that she take me to the hospital.

"I kind of remember going there and arriving in the emergency room, but then I don't remember anything. Next thing I know, I'm waking up in a hospital bed. My wife and kids were there, looking all concerned. They said that I just got two stents and that the doctor just barely saved my life."

Happy story, happy ending? Not quite.

I reviewed the angiograms made during Don's hospital stay. They did, indeed, show some plaque, but not anywhere close to the amount necessary to account for symptoms like fatigue or breathlessness. For symptoms like this to occur without physical exertion, say, at your desk or relaxing at home, a critical >90% blockage would be required.

The worst "blockage" Don had was 50% at most. The leap was made to connect his relatively vague symptoms with these "blockages," leading to the implantation of two stents.

This is not as uncommon as you think. Yes, the practice of cardiology can be a life of acute procedures, urgent situations, and crises. Unfortunately, some people with questionable need for these procedures also get swept up in the wave. Sometimes it's due simply to the doctor's need to do "something," nervous family waiting in the wings. Sometiems it's intellectual laziness: putting in two stents seems to satisfy many patients' needs to have something "fixed," even when symptoms like fatigue could be due to anemia, sleep deprivation, a thyroid disorder, or any other myriad conditions that require a diagnostic effort (otherwise known as thinking). And sometimes it's simply done with financial motives, since angiplasty and related procedures pay well.

I call this "drive-by angioplasty," the impulsive, poorly considered coronary procedure that really should never have happened. How often does this happen? What percentage of heart procedures fall into this category? There are no clear-cut estimates. There are crude attempts by independent agencies that have put the number of unnecessary heart catheterizations up to 20% of the total number performed. The proportion of angioplasty procedures, stents, etc. that are not necessary is a tougher number to pinpoint, given the uncertainties surrounding the indications for these procedures, physician judgment that factors into the decision-making process, and the fact that many decisions are made on a qualitative basis, not precise quantification.

In real life, I would put the proportion of flagrant drive-by procedures at no more than 10%. However, that is 10% of an enormous number. The annual cardiovascular healthcare bill is $400 billion. 10% of that is $40 billion--an unimaginable sum. It also adds up to tens of thousands of people per year needlessly subjected to procedures. Consider that 10,000 heart procedures were performed today alone.

Should we push for legislation to control how and when heart procedures are performed? I don't think so. Despite my criticisms of the status quo in heart care, I still favor the freedom and rapid development of a free-market approach. However, you as a healthcare consumer need to be armed with information. You don't go to the car dealer unarmed with information on prices and comparative performance of the car you want. You should do the same with health. Information is your weapon, your defense against becoming the victim of the next drive-by heart procedure.

"Heart Healthy" and other lies

23. January 2008 William Davis (7)

"Bankers believe liquidation has run its course and advise purchases."

New York Times headline, Oct 30, 1929, at the start of the Great Depression.

"I did not have sexual relations with that woman, Ms Lewinsky."

Former President Bill Clinton at a Washington Press Conference, 1998.

"The third quarter is going to be great."

Enron CEO, Ken Lay, just before the company reported a $638 million third-quarter loss, triggering the company's collapse.

Should we add the following to the list?

Heart Healthy Bisquick

Heart Healthy snacks according to the National Heart, Lung, and Blood Institute:

Animal crackers, devil's food cookies, fig and other fruit bars, ginger snaps, graham crackers, vanilla or lemon wafers

Angel food cake or other lowfat cakes

Low fat frozen yogurt, ice milk, fruit ices, sorbet, sherbet

Pudding (make it with fat free or 1% milk), gelatin desserts

Popcorn without butter or oil; pretzels, baked tortilla chips

67% digestible carbohydrates/sugars from corn syrup, sugar, ra All posts by william-davis

The world according to the Wheat Foods Council and the Whole Grains Council

23. April 2010 William Davis (26)

You might get a kick out of what the Wheat Foods Council and the Whole Grains Council recommend for a sample meal plan:

Breakfast: Whole grain raisin toast

Lunch: Sandwich on whole grain
Snack: Rye bread crackers
Dinner: Whole grain pasta with your favorite sauce

Breakfast: Whole grain waffles

Lunch: Hamburger on whole grain bun

Snack: Graham crackers

Dinner: Whole grain homemade pizza on whole grain pita crust

Remember Morgon Spurlock's documentary movie, Super Size Me? (If you haven't already seen it, Super Size Me is viewable for free on Hulu.) Spurlock conducts a self-inflicted 30-day experiment of eating at McDonald's fast food restaurants every day. In short, the results on Spurlock's weight and health are disastrous.

How about Wheat Belly: The Movie? We would chronicle our star through a 30-day course of meals served up by the Wheat Foods and Whole Grains Councils, all featuring wonderful wheat products in every meal. We could measure blood sugar, triglycerides, LDL, small LDL, weight, etc.

Any predictions?

Why bananas increase cholesterol

21. April 2010 William Davis (0)

Anything that increases postprandial (after-eating) blood sugar will increase the number of LDL particles in the blood.

An increase in LDL particles is an important factor in causing heart disease: The greater the number of LDL particles, the more opportunity they have to interact with the walls of arteries, contributing to atherosclerosis.

Carbohydrates increase small LDL, especially if postprandial sugar is increased. Here's another way carbohydrates increase LDL particles: The duration of time LDL particles hang around in the blood stream is doubled.

When blood sugar increases, such as after the 30 grams carbohydrates in a medium-sized banana, glycation of LDL particles occurs. This means that a gglucose (sugar) molecule reacts with a lysine residue in the apoprotein B of the LDL particle. This induces a change in conformation that makes it less readily recognized by the LDL receptor. Thus, the glycated LDL particle persists for a longer period of time in the blood stream.

LDL particles are therefore cleared less efficiently, numbers of LDL particles increase.

Plant-based or animal-based?

19. April 2010 William Davis (78)

The ideal diet for heart and overall health restricts carbohydrate intake. I say this because carbohydrates:

Make you fat--Carbohydrates increase visceral fat, in particular.
Increase triglycerides
Reduce HDL
Increase small LDL particles
Increase glycation of LDL
Increase blood pressure
Increase c-reactive protein

Reducing carbohydrates reverses all the above.

But here's a common mistake many people make when following a low-carbohydrate diet: Converting to a low-carb, high-animal product diet.

It accounts for a breakfast of a 3-egg omelette with cheese and butter, 4 strips of bacon, 2 sausages, cream in coffee. Low-carb? It certainly is. But it is a purely high-animal product, no-plant-based meal.

I believe a strong argument can be made that a low-carbohydrate but plant-based diet with animal products as the side dish is a better way to go.

Consider that:

1) Animal products have little to no fiber, while plant-based products like spinach, avocado, and walnuts and other raw nuts have substantial quantities.

2) Plant products are a source of polyphenols and flavonoids--This encompasses a large universe of nutrients, from epigallocatechins in tea, polymeric procyanidins from cocoa, to hydroxytyrosol from olives, and anthocyanins from red wine and eggplant. The inflow of these beneficial compounds needs to be frequent and generous, not piddly amounts taken infrequently.

3) Vitamin C--While it's easy to obtain, the fact that you and I need to obtain vitamin C from frequent ingestion of plant sources suggests that humans were meant to eat lots of plants. While it may require a few months of deficiency before your teeth fall out, imagine what low-grade deficiency can do over a long period.

4) Vitamin K1--Rich in green vegetables, vitamin K1 is virtually absent in animal products.

5) Tocotrienols--I've been watching the data on this fascinating family of powerful oil-soluble antioxidants unfold for 20 years. Tocotrienols come only from plants. (I recently had an extended conversation with the brilliant biochemist, Dr. Barrie Tan, who is incredibly knowledgeable about tocotrienols, having developed several methods of extraction from plants, including his discovery of the highly concentrated source, annatto. Be sure to watch for future conversations about tocotrienols.)

6) Meats and dairy yield a net acid load--While plant foods are net basic. At the very least, this yields risk for osteoporosis, since acids are ultimately buffered by basic calcium salts from the bones. Tissue and blood pH is a tightly regulated system; veering off just a teensy-weensy bit from the normal pH of 7.4 to an acidic pH of, say, 7.2, leads to . . . death. In short, pH control is very important. A net acid challenge from animal products is a lot like drinking carbonated soda, a huge acid challenge that leads to osteoporosis and other health issues.

Conversely, a pure plant-based diet has its own set of problems. Eating a pure plant-based diet can lead to deficiencies of vitamin B12, omega-3 fatty acids (no, linolenic acid from flaxseed will NOT cut it), vitamin K2, carnitine, and coenzyme Q10.

So, rather than a breakfast of 3-egg omelet with bacon, sausage, cream, and cheese, how about a handful of pecans, some blueberries, and a 2-egg omelet made with basil-olive oil pesto? Or a spinach salad with walnuts, feta cheese, and lots of olive oil?

Fat is not the demon

16. April 2010 William Davis (36)

So my patient, Dane, generously volunteered to be on the Dr. Oz show, as I discussed previously.

What we didn't know, nor did the producer who contacted us mention, that Dane would be counseled by low-fat guru Dr. Dean Ornish on a strict low-fat diet. The teaser introduction essentially tells the entire story.

Ironically, that is the exact opposite of the dietary program that I advocate. I rejected the 10% fat diet long ago after I became a type II diabetic, gained 30 lbs, and suffered miserable deterioration of my cholesterol values on this diet. I also witnessed similar results in many hundreds of people, all following a strict low-fat diet. In fact, elimination of wheat--whole, white, or otherwise--along with limitation or elimination of all other grains has been among the most powerful health strategies I have ever witnessed.

I now regret having subjected my patient to this theatrical misinformation. Dane is a smart cookie--That's probably why he was not allowed more than a "yes" or "no" during Dr. Oz's monologue, else Dane might have pitched in about some ideas that would have tripped Oz and Ornish up.

In their defense, if we took 100 Americans all following a typical 21st century diet of fast food, white bread buns, Coca Cola and other soft drinks, chips, barbecue sauce, and French fries, converting to a plant-based, high-carbohydrate, grain-rich diet is indeed an improvement. People will, at first, lose weight and enjoy an initial response. (The occasional person with the Apo E4 genetic pattern, heterozygote or homozygote, may even enjoy long-term benefits, a topic for another day.)

But the majority of people, in my experience, after an initial positive response to an Ornish-like low-fat, high-carbohydrate diet will either plateau (stay overweight, have low HDL, high triglycerides, plenty of small LDL, and high blood sugars) or deteriorate, much as I did.

Thankfully, Dane has been a good sport about this, understanding that this is essentially show business. I believe he understands that the information was all well-intended and, after all, we are all working towards the same goal: reduction of heart disease risk.

By the way, regardless of which diet you follow, it is, in my view, absurd to believe that diet alone will do it. What about vitamin D normalization, thyroid normalization (thyroid disease is incredibly common), omega-3 fatty acids from fish oil, identification of hidden sources of risk (something that is unlikely in Ornish, since small LDL particles skyrocket on a low-fat diet), postprandial glucoses, etc., all the pieces we focus on to gain control over coronary plaque? Eating green peppers and barley soup alone is not going to do it.

Near-fatal brush with nattokinase

14. April 2010 William Davis (0)

Here is precisely why I have spoken out against nattokinase: People may put faith in this "supplement" when there are virtually no data to support its use in such dangerous conditions as pulmonary embolism.

Pulmonary embolism occurs when a large volume of blood clots in the veins of the pelvis, abdomen, and into the legs. A clot breaks off and lodges in the pulmonary arteries of the lungs. This can be fatal within minutes to hours, the victim struggling to breathe, since oxygen is not transferred to the blood and it causes terrible pain in the chest.

The treatments are fairly obnoxious: intravenous anticoagulants (blood thinners), followed by oral blood thinners like warfarin. While they carry risk of bleeding and other long-term risks, it's better than dying.

Would you bet that a "nutritional supplement" manufacturer's vague claims and lack of data are sufficient proof to treat a life-threatening condition? You're a fool if you are.

Anyone reading these pages knows that I am a vigorous supporter of nutritional supplements. I even consult for the nutritonal supplement industry. But I am also an advocate of TRUTH, not BS.

Here is a woman from England who inquired whether she should stop her husband's warfarin in favor of nattokinase. This is precisely the sort of thing that can happen because of the campaign of misinformation behind nattokinase.

Dr. Davis,

Thank you for your very interesting blogs, which I came across searching for natural alternative treatments to warfarin.

My husband has been following the low carb, high fat, real food regime over the past few years. He got off all the blood pressure and cholesterol drugs and never felt better. He even got his blood sugar down from a recorded high that we are aware of 13 nmol/L (234 mg/dol) to 6.1 nmol/L 109.8 mg/dl).

We were on holiday in the Caribbean. Just before our return home, we did a trip to a neighbouring island that included non-alcoholic fruit punches. They tasted great, but were very sweet. I broke my normal refusal to drink these things, but only had a couple of glasses. (After all, we were on holiday!) My husband believes he consumed around 1.5 litres of the stuff and now realises he was feeding his body a very toxic product – fructose. That night, he had an incredible toxic response and we only got him onto the plane with a visit to the hospital and a pain killer injection.

The symptoms of pulmonary embolism only showed 2 weeks later . . . and warfarin treatment was started. We would both like to use an alternative therapy if we can find someone with experience to provide the support.Do you know of any studies that support alternative options?

Do you know of any practitioners in the England who support a non-drug approach with an understanding of nutrition who we may be able to receive advice and support?

FB
York, England

Glucophobia: The Novel

13. April 2010 William Davis (25)

Just kidding: No novel here. However, there is indeed a story to tell that should scare the pants off you.

If you haven't yet gathered that carbohydrates are a macronutrient nightmare, let me recount the list:

Carbohydrates increase small LDL particles
Or, in the cholesterol-speak most people understand, "carbohydrates increase cholesterol." It's counterintuitive, but carbohydrates increase LDL substantially, far more than any fat.

Carbohydrates increase blood sugar
Eggs don't increase blood sugar, nor do chicken, raw almonds, onions or green peppers. But a bowl of oatmeal will send your blood sugar skywards.

Carbohydrates make you fat
Carbohydrates, whether in the form of wheat flour in your whole wheat bread, sucrose in your ice cream, fructose in your "organic Agave nectar," or high-fructose corn syrup in your dill pickles. They all provoke de novo lipogenesis, or fat formation. They also stimulate insulin, the hormone of fat storage.

Carbohydrates cause glycation
High blood sugar, like the kind that develops after a bowl of oatmeal, triggers glycation, or modification of proteins by glucose (blood sugar). This is how cataracts, kidney disease, and atherosclerotic plaque develop. Small LDL is 8-fold more glycation prone than large LDL, providing a carbohydrate double-whammy.

Your glucose meter remains the single best tool to gauge the quality of your diet. Many people have horror stories of the shocking experiences they've had when they finally get around to checking their postprandial glucose.

Drama with the Dr. Oz Show

11. April 2010 William Davis (27)

A producer from the Dr. Oz show recently contacted my office. They asked whether we could supply them with a volunteer patient from either my practice or the Track Your Plaque program who would be willing to appear on the show and discuss heart disease prevention. They needed someone to commit within 24 hours.

Despite the short notice, we identified a volunteer. He flew to New York the following week where he was interviewed along with several other men and women, all of whom had heart disease (heart attacks, stents, etc.). However, as this young man is very slender and follows most of the Track Your Plaque principles (e.g., vitamin D and omega-3 fatty acid supplementation; no wheat, cornstarch, or sugars, no restriction of fat, etc.), he apparently received less attention than the overweight, I-know-nothing-about-diet interviewees.

Then there was an odd turn of events: Dr. Dean Ornish, apparently a friend of Dr. Oz, will be providing the dietary counseling. The producer had made no mention of Dr. Ornish.

Now that's an odd collision of philosophies: Our Track Your Plaque version of low-carb with the guru of low-fat, Dr. Ornish.

The following week, Dr. Ornish called me and graciously asked whether I was okay with this. I'm not sure just how much he knew about the philosophy I advocate, nor how much I have bashed his program as a destructive approach to diet, nor whether he knew that I gained 30 lbs on the Ornish diet, along with a drop in HDL to 27 mg/dl, increased triglycerides to 350 mg/dl, and type II diabetes that I've talked about on this blog and the Track Your Plaque book and website. I suspect he knew little to none of this.

Anyway, I tried to diplomatically explain that my patient's cause for coronary plaque was small LDL particles that he expressed despite his very slender build, likely from excessive carbohydrates, controlled with carbohydrate restriction. Dr. Ornish maintained his usual arguments: Grains are good, provided they are whole grains, heart disease is "reversed" with his diet program, etc. (I didn't want to challenge him in a phone call and tell him that he never actually reversed coronary plaque, but just reversed endothelial dysfunction. But, as Dr. Ornish is not a cardiologist, I wasn't sure how far his understanding of these issues went.)

We agreed to disagree. This leaves my poor patient in an odd position: Being asked by Dr. Ornish and the Dr. Oz show to follow a low-fat program for the sake of entertainment, or adhering to the advice we follow that has so far served him well, given his small LDL particle size tendencies.

We'll see where this little drama leads.

Response from Nature Made

10. April 2010 William Davis (31)

Here's the response from Nature Made when I emailed them about my concern that there appears to be no vitamin D in their vitamin D gelcaps.

It is the usually CYA corporate-speak that says nothing. The grammatical errors make it clear that this was a "canned" response.

Date: April 9, 2010
From: Marissa Reyes, Consumer Affairs Department
Subject: Reference #346236

Dear William Davis, MD:

We recently received your e-mail regarding Nature Made products. We regret to
hear that the quality standards of our company. [?]

Our company is called Pharmavite, and we manufacture Nature Made nutritional
supplements. We have been in business since 1971. We are committed to quality
control, and have very high quality standards. Our Quality Control personnel
sample and test all raw materials as they enter our plant, and again assay the
finished product, before final packaging.

Dietary Supplements are regulated under the FDA through DSHEA (Dietary
Supplement Health & Education Act of 1994). The United States Pharmacopoeia
(USP) establishes standards for the composition of drugs and nutritional
supplements. This voluntary non governmental organization was set up in 1820
and has officially been recognized by federal law since 1906. Standards
established by USP for products are legally enforceable by the FDA. At
Pharmavite we participate in the USP Dietary Supplement Verification Program
(DSVP). Many of our products have earned the DSVP seal and additional products
are currently being evaluated. Our DSVP certified products will have the DSVP
seal on the product label.

Our Nature Made Vitamin D 400 IU tablets have been reviewed by the USP and bears
the DSVP symbol on the label. Although the USP has not reviewed all of the
Nature Made Vitamin D supplements, all of our products go through the same
rigorous quality testing at Pharmavite. The products which have earned the seal
help us to demonstrate the high quality of our products.

We would like to look into the product(s) your patients have been using. If you
could provide the UPC and lot numbers of the product(s), we will be happy to
review our records. In addition, if you would like us to test the product(s)
that you currently have, we will be pleased to send a prepaid postage mailer so
you may return the product(s) to us so that our Quality Control Department can
examine it. Please let us know if you would like us to send you the prepaid
postage mailer.

We thank you for contacting us and hope that you will continue to use and enjoy
Nature Made products with complete confidence.

Sincerely,
Marissa Reyes
Consumer Affairs Coordinator
Pharmavite, LLC
MR:346236-10

Patients who come to the office do not provide me with the bottles nor lot numbers. In past, when I've gone to the trouble of doing this (with other companies, not Nature Made), it has come to nothing helpful. The information gets passed on to the company and we hear nothing and never learn if there was a problem, or receive some more corporate-speak letter saying everything was fine. This is obviously a liability-avoidance tactic: Admitting that something was wrong would open them up to legal risk. So, frankly, I can't be bothered.

So we are left with the unsatisfying experience of relying on street-level experiences.

For now, my advice: Avoid Nature Made vitamin D. Too many people have had blood tests demonstrating that they are not obtaining any vitamin D.

By the way, the Nature Made brand of fish oil is among the very few problem brands of fish oil we've encountered. Fish oil should be only mildly fish in smell and generally should not cause stomach upset and excessive belching if properly purified. Nature Made is excessively fishy when you smell it, suggesting oxidation. We've had repeated (dozens) of patients who have experienced difficulties with this brand. Rather than dealing with the frustrating gobbledy-gook of this company, just avoid their products.

What to Eat: The diet is defined by small LDL

9. April 2010 William Davis (15)

I approach diet from the perspective of small LDL particles.

Small LDL particles have exploded in frequency and severity in Americans. It is not at all uncommon to see 70% or more small LDL particles (i.e., 70% of total LDL particle number or Apo B) on lipoprotein testing. (I saw two people today who began with over 95% small LDL.)

Small LDL particles are:
--More likely to persist in the bloodstream longer than large LDL particles.
--More likely to adhere to components of atherosclerotic plaque.
--More likely to gain entry to plaque.
--More likely to be taken up by inflammatory white blood cells which, in turn, become the mast cells that fill coronary plaque.
--More likely to be oxidized.
--More likely to be glycated (8-fold more likely than large)

To add insult to injury, foods that trigger small LDL formation--i.e., carbohydrates--also cause high postprandial blood sugars. High postprandial blood sugars, in turn, glycate small LDL. That combination of events accelerates 1) plaque growth, 2) plaque instability, and 3) aging.

So carbohydrates trigger this sequence, carbohydrates of all stripes and colors. Not just "white" carbohydrates, but ALL carbohydrates. It's all a matter of degree and quantity. So, yes, even quinoa, bulghur, and sorghum trigger this process. I've only recently appreciated just how bad oats and oatmeal are in this regard--really bad.

Foods that trigger small LDL also trigger higher blood sugars; foods that trigger higher blood sugars also trigger small LDL. Small LDL and blood sugar are two different things, but they track each other very closely.

So, in the Track Your Plaque approach to diet, we craft diet based on these simple principles:

1) Eliminate wheat, cornstarch, and sugars--These are the most flagrant triggers of small LDL, blood sugar, and, therefore, LDL glycation.
2) The inclusion of other carbohydrates, such as oatmeal, quinoa, rye, etc. depends on individual sensitivity. Individual sensitivity is best gauged by assessing one-hour postprandial glucose.

Stay tuned for more in this series. Also, Track Your Plaque Members: We will be having an in-depth webinar detailing more on thees principles in the next couple of weeks.

Is it or isn't it vitamin D?

7. April 2010 William Davis (63)

Jackie takes 10,000 units of vitamin D(3) per day as a gelcap.

Her starting 25-hydroxy vitamin D blood level was 18.1 ng/ml. Severe deficiency, no surprise.

On her 10,000 units per day, Vitamin Shoppe brand, her 25-hydroxy vitamin D level was 76.2 ng/ml--perfect. It stayed in this range for about two years.

She then changed to the Nature Made brand gelcaps she picked up at Walgreen's. Repeat 25-hydroxy vitamin D level: 23 ng/ml.

This has now happened with five different people, all taking the Nature Made brand.

If you are taking this brand of vitamin D, please be on the alert. You might consider a 25-hydroxy vitamin D blood level to be sure it actually has the vitamin D it's supposed to have.

Or, change brands.