All posts by william-davis

I’m seeing more and more of it and I am convinced that there is a relationship: significant boosts in HDL cholesterol from vitamin D supplementation.

To my knowledge this remains an undescribed and uncharacterized phenomenon. There have been several observers over the last two decades who have noticed that total cholesterol shows a seasonal fluctuation: cholesterol goes up in fall and winter, down in spring and summer; year in, year out. This phenomenon was unexplained but makes perfect sense if you factor in vitamin D fluctuations from sun exposure.

I have come across no other substantiating evidence about fluctuations of HDL. But I am convinced that I am seeing it. Replace vitamin D to a blood level of 50 ng/ml, and HDL goes up if it is low to begin with. If HDL is high to begin with, say, 63 mg/dl, it doesn’t seem to change.

But, say, starting HDL is 36 mg/dl. You take niacin, 1000 mg; reduce high-glycemic index foods like breakfast cereals, breads, cookies, bagels, and other processed carbohydrate foods; exercise four days a week; add a glass of red wine a day; even add 2 oz of dark chocolate. You shed 15 lbs towards your ideal weight. After 6 months, HDL: 46 mg/dl. Better but hardly great.

Add vitamin D at a dose of, say, 4000-6000 units per day (oil-based gelcap, of course!), and re-check HDL two or three months later: 65 mg/dl.

I’ve seen it happen over and over. It doens't occur in everybody but occurs with such frequency that it’s hard to ignore or attribute to something else. What I’m not clear about is whether this effect only occurs in the presence of the other strategies we use to raise HDL, a “facilitating” effect, or whether this is an independent benefit of HDL that would occur regardless of whatever else you do. Time will help clarify.

We are tracking our experience to see if it holds up, how, and to what degree on a more formal basis. Until then, a rising HDL is yet another reason—-among many!-—to be absolutely certain your 25-OH-vitamin D3 level is at 50 ng/ml or greater.

How high is an ideal vitamin D blood level? If 50 ng is good, is 60 or 70 ng even better? Probably not, but there are no data. We have to wait and see. Unlike a drug that enjoys plentiful “dose-response” data, there are no such observations for vitamin D into this higher, though still “physiologic,” range.

How long can an industry built on ignorance and deception continue its practices in the new Information Age?

I don’t think it can for long. I talk to hospital administrators who believe that their source of competition is the hospital across town, battling for the same patients. I speak to my colleagues, the cardiologists, who believe that the current model is sustainable—take every willing body to the catheterization laboratory or operating room for heart procedures, the revenue-generating engine of income and expanding heart programs.

I speak to primary care physicians, who are dumbfounded and perplexed and have no idea which way things are going. They are trapped in a peculiar position: most have signed contracts and are employees of the hospital. They are legally bound to support the cardiologists who take anybody possible to the catheterization laboratory or direct patients to other profit-making procedures.

Much of this system depends on the willingness of the participant, meaning you and the health care seeking public. What happens when the truth comes out and disseminates widely through the thinking populace? What happens to hospitals and physicians and the vast structures they’ve built when the bottom drops out for 50% of their “market?

The proverbial cow manure will hit the fan. Upheavals in the medical industry will rival the changes that the automobile or telephone brought early in the last century. Cardiologists, immense hospital heart programs, and the vast economic infrastructure they spawned will go the way of stage coach manufacturers and the telegraph.

What form will the broad exposure of detailed information in health take? I’m not sure, but it will certainly come. The collaborative efforts that created the Linux operating system and have challenged the monopoly of Microsoft Windows, or the emergence of the extraordinary Wikipedia as a repository of human knowledge that dwarfs the venerated Encylopedia Brittanica, will eventually overtake the American medical system, the heart disease industry in particular.

If you base your future on the welfare of your local hospital or the manufacturers of stents, operating room equipment for heart bypass, or similar industries, watch out. The ice is thin. And as the spring warms the air around you, it gets thinner.

The Track Your Plaque program is our first step in broadcasting the message of self-empowerment in heart health care and an attempt to wrestle control away from the profit-seeking forces that dominate. As we grow, we not only hope to broadcast the message more widely, but expand the message to other areas of health. I predict that the collaborative, let’s-all-pitch-in-and-help spirit of the Information Age, “version 2.0,” will spark the change.

Although this is a Blog about heart scans and heart disease, I came across a helpful video from Dr. Joseph Mercola about vitamin D and cancer that's worth viewing. Though I do not agree with many of Dr. Mercola's on-the-edge views, he does come up with some good thoughts and, in this instance, a useful educational tool about vitamin D.

You can view his video (which he claims crashed his server, due to the excessive demand for downloads) by cutting and pasting the address into your URL bar (above):

http://v.mercola.com/blogs/public_blog/How-to-Reduce-Your-Risk-of-Cancer-By-50--8790.aspx

Also, for my many patients who I've directed to look in my Blog for Dr. Reinhold Vieth's webcast presentation on vitamin D, here's the address:

http://tinyurl.com/f93vl

Perhaps I carry on too much about vitamin D. But I've come to respect this "nutrient" as among the most powerful strategies I've seen for dramatically improving control over coronary plaque growth as well as other aspects of health, as Drs. Mercola and Vieth eloquently detail.

Lipoprotein(a) is a curious lipoprotein. Not only is it a genetic pattern with numerous variations, it is also one that shows a predictable age-dependent rise.

Women in particular are prone to this effect, men to a lesser degree. As we age, many hormones recede, particularly growth hormone, testosterone, the estrogens (estradiol, estriol, estrone), progesterone, and DHEA, among others. This is not a disease but the process of senescence, or aging.

When we're young, estrogens, testosterone, and DHEA all exert suppressive effects to keep lipoprotein(a), Lp(a), at bay. But as a woman proceeds through her pre-menopausal and menopausal years, and as a male passes through his fourth decade, there is an accelerated decline of these hormones. As a result, Lp(a) crawls out of its cave and starts to sniff around.

Typically, a woman might have a Lp(a) of 75 nmol/l (approximately 30 mg/dl) at age 38. Ten years later, at age 48, her Lp(a) might be 125 nmol/l (app. 50 mg/dl), all due to the decline of estrogens and DHEA. A parallel situation develops in males due to the drop in testosterone. For this reason, it may be necessary to re-check Lp(a) once after the fourth decade of life if you've had a level checked in your younger years.

This opens up some interesting therapeutic possibilities. If receding hormones are responsible for unleashing Lp(a), hormones can be replenished to reduce it. In males, this is relatively straightforward: supplement human testosterone and Lp(a) drops about 25%.

In women, however, it's a bit murkier, thanks to the negative experince reported using horse estrogens (AKA Premarin) in the HERS Trial and Women's Health Initiative. You'll recall that women who take horse estrogens and progestins (synthetic progesterone) do not experience less heart attack and develop a slightly increased risk of endometrial and breast cancer. There was, however, a poorly-publicized sub-study that showed that women with Lp(a) experience up to 50% fewer heart attacks on the horse/synthetic combination.

Wouldn't it be nice to have a large trial examining the safety/advisability of human estrogens and progesterone? To my knowledge, no such confident study in a significant number of women exists, since there's so little money to be made with human hormonal preparations.

For these reasons, we use lots of DHEA, generally at doses of 25 to 50 mg per day. It makes most people feel good, boosts energy modestly, increases muscle, and reduces Lp(a) up to 18% in women, a lesser quantity in men.

At a presentation at the American College of Cardiology meetings in New Orleans yesterday (March 27, 2007), Dr. Arthur Agatston declared "I have been doing CT for many years, and I have never seen regression."

Whooooaaaa. Wait a minute here. I have great respect for the work Dr. Agatston has done over the years. He is, after the originator of the scoring algorithm that allows us to score CT heart scans (though a more accurate measure, the volumetric score, is the one we often use behind closed doors because of modestly increased accuracy and reproducibility). His diet program, the South Beach Diet, has achieved enormous success and is indeed an effective approach for both weight loss and correction of many weight-related causes of heart disease.

But he has never seen regression? Why would this be when we see it all the time? When we see heart scan scores drop 30%, it's hard to believe that with some savvy he has never seen regression (drop in score).

I can only attribute the difference to the more intensive endpoints we advocate (e.g., 60-60-60 for lipid values); the incorporation of adjuncts like fish oil, vitamin D, l-arginine; attention to non-cholesterol issues and intensified treatments for each. I doubt that the populations we see differ substantially.

As much as I admire Dr. Agatston's accomplishments, I believe that he is behind the times on this issue. No regression is so starkly different from the Track Your Plaque experience. I believe that relying only on statin drugs and diet will slow but will not stop plaque growth. It will also rarely, if ever, drop your score.

Attention to detail and a little insight into better preventive strategies really pays off. While not everyone in the Track Your Plaque experience will drop their score, a substantial number do. Many more slow plaque growth dramatically. And, as time goes on, our track record gets stronger and stronger.

The results of the long-awaited COURAGE Trial were announced today at the American College of Cardiology meetings in New Orleans.

In this trial, 2200 participants with stable coronary disease (i.e., not unstable, in which heart attack or death is imminent) were randomly assigned ("randomized") to either angioplassty/stent or "maximal medical therapy." Medical therapy means such things as aspirin, beta blocker drugs, and statin cholesterol drugs. There was virtually no difference between the groups in rate of heart attack and death from heart disease over a period of up to 7 years.

These results have caused a stir in the media and my colleagues, trying to sort out of the implications. However, I think there's one observation in particular worth making for those of us who tend to scoff at the conventional approach to coronary disease. That is, 1 of 5 people had a heart attack or died from heart disease in both groups. That's a lot. Even more ended up with a procedure (angioplasty, stent, or bypass). In other words, the "maximal medical therapy" instituted in participants was hardly a success. Though angioplasty and stenting failed to prove superiority, both really stunk. Both permitted a lot of catastrophes to occur.

"Maximal medical therapy," in other words, is a laughable concept. It doesn't include raising HDL, suppressing small LDL, reducing Lipoprotein(a), addressing inflammatory issues. It does not include omega-3 fatty acids from fish oil, nor does it address the severe degrees of vitamin D deficiency that are proving, in the Track Your Plaque experience, to be among the most potent causes of atherosclerotic plaque known. It includes a sad attempt at diet, as advocated by the American Heart Association, a diet that, in my view, causes heart disease and is distorted by the powerful political and financial influence of food manufacturers.

If the trial were to be done again, I'd like to see the "maximal medical therapy" arm be represented by a more effective program like the Track Your Plaque approach.

Margaret is 73. She's a very good 73. She loves children and works full-time in a daycare. She manages her own household, goes to dinner at least once each week with one or more of her adult children. She is slender and has never been in the hospital--until she developed an abnormal heart rhythm called atrial fibrillation.

Most people who develop atrial fibrillation do so with no immediate identifiable cause. However, Margaret has been a widow since her husband died 15 years ago of a heart attack. She was therefore especially frightened of any heart issues in her own health. Her doctor also raised the question of whether atrial fibrillation might represent the first hint of future heart attack.

So we advised a CT heart scan. Score: zero, or no detectable plaque whatsoever. This put Margaret's risk for heart attack as close to zero as humanly possible. (Nobody is truly at zero risk for heart attack for a number of reasons. One reason is that people do irrational things like take cocaine or amphetamines, or they take too much decongestant medication, all of which can trigger heart attack.)

The heart scan settled it. Margaret has the sort of atrial fibrillation which likely simply develops as a result of "wear and tear" on the heart's electrical impulse conducting system and it has nothing to do with coronary heart disease or heart attack.

As that MasterCard commercial goes: Cost of a heart scan: About $200. Peace of mind: priceless.

If you're a participant in the Track Your Plaque program for atherosclerotic plaque regression, you are at the cutting edge of health.

Few physicians give this issue any thought. Chances are, for instance, that if you were to bring up the subject of reversal of heart disease to your primary care physician, you'd get a dismissive "it's not possible," or " Yeah, it's possible but it's rare."

Ask a cardiologist and you might make a little more progress. He/she might tell you that Lipitor 80 mg per day or Crestor 40 mg per day might achieve a halt in plaque growth or a modest reduction of up to 5-6%. If they've tried this strategy, they would likely also tell you that hardly anybody can tolerate these doses for long due to muscle aches. I'd estimate that 1 of 10 of my colleagues would even be aware of these studies.

Both groups are, however, reasonably adept at diagnosing chest pain, an everyday occurrence in hospitals and offices. Chest pain, for them, is a whole lot more interesting. It holds the promise of acute catastrophe and all its excitement. It also holds the key to lots of hospital revenues. Did you know that 80% of all internal medicine physicians are now employees of hospitals? They're also commonly paid on an incentive basis. More revenues, more money.

Ask Drs. Dean Ornish or Caldwell Esselstyn about reversal of heart disease and they will tell you that a very low-fat diet (<10% of calories)can do it. That's true if you use a flawed test of coronary disease like heart catheterization (angiograms) or nuclear stress tests (Ornish calls them "SPECT"). It would be like judging the health of the plumbing in your house by the volume of water flowing out the spigot. It flows even when the pipes are loaded with rust.

In the Track Your Plaque experience, extreme low-fat diets (i.e., high wheat, corn, and rice diets) grotesquely exagerrate the small LDL particle size pattern, among the most potent triggers for coronary plaque growth. This approach also makes your abdomen get fatter and fatter and inches you closer to diabetes. Triglycerides go up, inflammation increases.

If you were able to measure the rust in the pipes, that would be a superior test. You can measure the "rust" in your "pipes," the atherosclerotic plaque in your coronary arteries, using two methods: CT heart scans or intracoronary ultrasound. Take your pick. I'd choose a heart scan. It's safe, accurate, inexpensive. I've performed many intracoronary ultrasounds for people in the midst of heart attacks or some other reason to go to the catheterization laboratory. But for well people, without symptoms, who are interested in identifying and tracking plaque? That's the place for heart scans.

In our program, 18-30% reductions in heart scan scores are common.

Burt came to me last week. He'd received a stent a few months earlier. He'd been feeling fine except for some fatigue. A nuclear stress test proved equivocal, with the question of an abnormal area of blood flow in the bottom (inferior wall) of the heart.

"The doctor said I had a 50% blockage. Even though it wasn't really severe, he said I'd be better off with a stent, just in case."

Just in case what? What justification could there be for implanting a stent "just in case"? (The artery that was stented did not correspond to the area of questionable poor blood flow on the nuclear stress test.)

Just in case of heart attack? If that's the case, what about the several 20 and 30% blockages Burt showed in other arteries? The cardiologist was apparently trying to prevent the plaque "rupture" that results in heart attack by covering it with a stent. Why stent just one when there were at least 7 other plaques with potential for rupture?

That's the problem. And that's why stents do not prevent heart attack (unless the stent is implanted in the midst of heart attack, when the rupturing plaque declares itself.) Of course, when no plaque is in the midst of rupturing, as with Burt, there's no way to predict which plaque will do so in future. Since only one plaque was stented, there is a 7 out of 8 chance (87.5%) that the wrong plaque was chosen. And that's assuming that there aren't plaques not detected by catheterization angiogram; there commonly are. The odds that the right plaque was chosen would be even lower.

In other words, stenting one blockage that is slightly more "severely blocked" in the hopes of preventing heart attack is folly. If it's not resulting in symptoms and blood flow is not clearly reduced, a stent can not be used to prevent plaque rupture. A stent is not a device to be used prophylactically. It is especially silly when an approach like ours is followed, since plague progession is a stoppable process.

Note: This issue is distinct from the one in which symptoms and/or an abnormal stress test show clearly reduced blood flow and flow is restored by implantation of a stent. While some controversies exist here, as well, a stent implanted under these circumstances may indeed provide some benefit.

This issue came up twice this week.

Bill is a busy accountant. Two years ago, just after the tumult of the 2005 tax season was over, he got a CT heart scan. His score: 398. At age 53, this was a significant score. His internist did the usual: prescribed a statin (Zocor), told him to cut the fat in his diet, and be sure to exercise. (Yawn.)

Since then, Bill quit preparing tax returns and migrated to a less harried job in corporate accounting. It took two years since his heart scan for Bill to start thinking that perhaps his doctor's advice wasn't enough. If it was, he realized, everyone on a statin drug who made these minimal lifestyle changes would be cured of heart attack risk. Clearly not the case.

So Bill enrolled in the Track Your Plaque program. Our first step: Get another heart scan.

Bill was surprised. "Why another scan? I already had one!"

I explained to Bill that atherosclerotic plaque is like money: it grows in percentages, just like money in a bank account or in a mutual fund. If, for instance, you deposit $500 in a mutual fund and it yields 5% return, then after one year you will have $550. One year later, you will have 5% x $550, or $605. Another year: $665. In other words, growth is not 10% of the original amount you deposited. Growth is compounded, year over year. That's why money, when compounded, can grow so quickly.

Atherosclerotic plaque and your CT heart scan score do the same thing: they grow by a percentage of the current plaque quantity. In fact, we use the compound interest equation to calculate the annualized rate of plaque growth. But plaque grows at the extraordinary rate of 30% per year, on average. Imagine that was the rate of return on your money. You'd be the richest man or woman on earth.

Back to Bill. Now Bill, in his defense, was on a statin drug and did make modest efforts towards a (mis-guided) low-fat diet and walking four days per week. If, on a second CT heart scan, his score was:

398--No change. That's a success, since the expected rate of increase of 30% has been stopped. However, on his current program, this is highly unlikely. (I've seen it happen just once ever out of about 2000 people.)

250--Pop the cork on your champagne, because Bill needs to celebrate. He has substantially reversed his plaque. Highly unlikely on the current effort.

525 --The score is higher by 30%, so it has slowed, but it surely hasn't stopped. This is the most typical result on the sort of program Bill is following.

The message: Don't delay after your first heart scan score. It plaque grows like money with a huge return, there's no time like the present to take the steps to regain control.

The Fanatic Cook has posted a stinging criticism of the American Heart Association (AHA):

American Heart Association My Fat Translator

Beyond the nonsensical nutritional recommendations (e.g., substitute small French fries for large French fries), she lists the major financial contributors to the AHA, a Who's Who in the pharmaceutical and processed food industry.

"For an organization that brought in close to a billion dollars last year, you'd think they could come up with something a little more pronounced. If I was more cynical I'd say the AHA had an interest in keeping Americans fat . . . or at least dependent on a highly-processed, fast food diet, requiring drugs to tweak lab values."

To be sure, the AHA does a great deal of good in funding research and educating the public about the prevalence of heart and vascular disease. But their fund raising interests have clearly subverted the honesty of their nutritional advice. Sadly, it is the AHA dietary advice that hospital dietitians use in counseling people with heart disease after their heart attack, stent, or bypass surgery. After my patients are discharged from the hospital for any reason, I tell them to please forget everything the nice hospital dietitian told them. It is not okay to eat the factory farm-raised hamburger on the sugar-equivalent enriched flour bun. Low-fat ice cream is not a healthy substitute for full-fat ice cream.

The AHA is no different than the USDA and the American Diabetes Association, "official" organizations that have, in effect, sold out to industry.

Sleep is a fascinating phenomenon.

Virtually all animals, certainly all mammals, sleep. While the form and shape of sleep can vary, sleeping is a universal phenomenon. Even fish sleep, though their eyes remain open.

Sleep disorders like sleep apnea ("apnea" = without breathing) are growing in prevalence nationwide as the country gets fatter and fatter. Our throats assume a smaller diameter, even our tongues get obese. This results in intermittent obstruction to the airway during sleep, causing snoring. It also results in sleep interruption, particularly during attempts to "descend" down to the deepest phases of sleep. Dire health and cardiac consequences can sometimes emerge, such as high blood pressure, higher blood sugar, abnormal heart rhythms, impaired heart muscle function, even sudden death.

We are all familiar with the perceptible effects of sleep deprivation: edginess, crabbiness, diminished attention span, slowed reaction time. I'm not talking about sleep apnea or sleep disorders, but just simple duration of sleep. Data are emerging that both sleep deprivation and sleep excess may trigger undesirable changes in lipids (cholesterol values):

Associations of usual sleep duration with serum lipid and lipoprotein levels.

Kaneita Y, Uchiyama M et al.

STUDY OBJECTIVES: We examined the individual association between sleep duration and a high serum triglyceride, low HDL cholesterol, or high LDL cholesterol level. DESIGN AND SETTING: The present study analyzed data from the National Health and Nutrition Survey that was conducted in November 2003 by the Japanese Ministry of Health, Labour and Welfare. This survey was conducted on residents in the districts selected randomly from all over Japan. PARTICIPANTS: The subjects included in the statistical analysis were 1,666 men and 2,329 women aged 20 years or older. INTERVENTION: N/A. MEASUREMENTS AND RESULTS: Among women, both short and long sleep durations are associated with a high serum triglyceride level or a low HDL cholesterol level. Compared with women sleeping 6 to 7 h, the relative risk of a high triglyceride level among women sleeping <5 h was 1.51 (95% CI, 0.96-2.35), and among women sleeping > or =8 h was 1.45 (95% CI, 1.00-2.11); the relative risk of a low HDL cholesterol level among women sleeping <5 h was 5.85 (95% CI, 2.29-14.94), and among women sleeping > or =8 h was 4.27 (95% CI, 1.88-9.72). On the other hand, it was observed that the risk of a high LDL cholesterol level was lower among men sleeping > or =8 h. These analyses were adjusted for the following items: age, blood pressure, body mass index, plasma glucose level, smoking habit, alcohol consumption, dietary habits, psychological stress, and taking cholesterol-lowering medications. CONCLUSIONS: Usual sleep duration is closely associated with serum lipid and lipoprotein levels.

Triglycerides go up with too little or too much sleep. Note especially the extraordinary association of low HDL cholesterol with sleeping <5 hours (nearly 6-fold increased risk) or sleeping >8 hours (more than 4-fold increased risk).

Why do these effects develop? Does sleep deprivation, for instance, trigger higher adrenaline levels, encourage carbohydrate cravings or binges, make us less likely to engage in physical activity? Cortisol is elevated; could this be a factor? I know that I am a different person when sleep-deprived: irritable, less clear-thinking, quicker to anger, more critical, and I develop carbohydrate cravings. It's curious that triglycerides increase when sleep excess is present; what might that represent?

Anyway, the data are growing: Sleep is an important facet of health, both for maintaining a bright outlook and to discourage development of low HDL and high triglycerides. Though not specifically examined in this study, we know that low HDL/high triglycerides are, as a rule, associated with the undesirable small LDL particle pattern.

As a practical matter, you may also find sleep and waking from sleep more satisfying and restful if you sleep in increments of 90 minutes, e.g., 7 1/2 hours (rather than 7 or 8 hours). This is because the full cycle of sleep, from phase 1 to REM (rapid-eye movement sleep), requires 90 minutes for completion. That doped feeling that sometimes develops when awaking will disappear if you sleep according to your sleep cycle, which is usually 90 minutes long.

There's no doubt that low thyroid function results in fatigue, weight gain, hair loss, along with rises in LDL cholesterol and other fractions of lipids. It can also result in increasing Lp(a), diabetes, and accelerated heart disease, even heart failure.

But how do we distinguish "normal" thryoid function from "low" thyroid function? This has proven a surprisingly knotty question that has generated a great deal of controversy.

Thyroid stimulating hormone, or TSH, is now the most commonly used index of the adequacy of thyroid gland function, having replaced a number of older measures. TSH is a pituitary gland hormone that goes up when the pituitary senses insufficient thyroid hormone, and a compensatory increase of thyroid hormone is triggered; if the pituitary senses adequate or excessive thyroid hormone, it is triggered to decrease release of TSH. Thus, TSH participates in a so-called "negative feedback loop:" If the thyroid is active, pituitary TSH is suppressed; if thyroid activity is low, pituitary TSH increases.

An active source of debate over the past 10 years has been what a normal TSH level is. In clinical practice, a TSH in the range of 0.4-5.0 mIU/L is considered normal. (Lower TSH is hyperthyroidism, or overactive thyroid; high TSH is hypothyroidism, or underactive thyroid.)

The data from a very fascinating and substantial observation called the HUNT Study, however, is likely to change these commonly-held thyroid "rules."

The association between TSH within the reference range and serum lipid concentrations in a population-based study. The HUNT Study

In this study, over 30,000 Norwegians without known thyroid disease were enrolled. TSH levels and lipid (cholesterol) levels were measured.

In this large and extraordinary observation, increasing TSH levels were associated with increasing levels of LDL cholesterol and triglycerides, and decreasing HDL. At what level of TSH did this relationship start? At TSH levels as low as 1.0!

In other words, there were perturbations in standard lipid measures even with TSH levels ordinarily regarded as "normal," even "perfect."

A subsequent observation from the HUNT Study was even more recently published:

Thyrotropin Levels and Risk of Fatal Coronary Heart Disease: The HUNT Study

Abstract:

Background Recent studies suggest that relatively low thyroid function within the clinical reference range is positively associated with risk factors for coronary heart disease (CHD), but the association with CHD mortality is not resolved.

Methods In a Norwegian population-based cohort study, we prospectively studied the association between thyrotropin levels and fatal CHD in 17 311 women and 8002 men without known thyroid or cardiovascular disease or diabetes mellitus at baseline.

Results During median follow-up of 8.3 years, 228 women and 182 men died of CHD. Of these, 192 women and 164 men had thyrotropin levels within the clinical reference range of 0.50 to 3.5 mIU/L. Overall, thyrotropin levels within the reference range were positively associated with CHD mortality (P for trend = .01); the trend was statistically significant in women (P for trend = .005) but not in men. Compared with women in the lower part of the reference range (thyrotropin level, 0.50-1.4 mIU/L), the hazard ratios for coronary death were 1.41 (95% confidence interval [CI], 1.02-1.96) and 1.69 (95% CI, 1.14-2.52) for women in the intermediate (thyrotropin level, 1.5-2.4 mIU/L) and higher (thyrotropin level, 2.5-3.5 mIU/L) categories, respectively.

Conclusions Thyrotropin levels within the reference range were positively and linearly associated with CHD mortality in women. The results indicate that relatively low but clinically normal thyroid function may increase the risk of fatal CHD.

In other words, the findings of this substantial observation suggest that the ranges of TSH usually regarded as normal contribute to coronary events, cardiac death, as well as lipid patterns. While several other studies have likewise shown a relationship of higher TSH/lower thyroid function with lipid abnormalities and overt heart disease, no previous study has plumbed the depth of TSH to this low level and to such a large scale.

I believe that these findings are enough cause to begin thinking seriously about monitoring thyroid function more seriously to uncover "borderline" TSH increases in the "normal" range. While higher TSH levels predict cardiovascular events, does thyroid replacement at these levels reduce it? Critics will say it's a big leap, but I think that it is worth at least considering.

Stay tuned for a lengthy Special Report followed by a full booklet on these issues on the www.cureality.com website.

Copyright 2008 Wiliam Davis, MD

Tne Philadelphia NBC affiliate's website carried this commentary from a colleague of mine:

Mark from the Lehigh Valley is curious about scans that can detect heart disease.

He asked, "I am in my early 50s. My father had a heart attack in his 40s. I am healthy with no symptoms of heart disease, should I consider a heart scan?"

"Well, Mark, occasionally family history needs to be considered more closely. If your father had coronary disease at a relatively young age at the absence of any known risk factor for heart disease for example diabetes, smoking, obesity, high blood pressure, than your level of risk should be considered more closely," Dr. Kevin Shinal, a cardiologist, said.

"There are a number of studies available to access [sic] your level of risk. One such study is a calcium score. A calcium score is a form of a CAT scan that access [sic] the calcium burden or presence of calcium in your coronary arteries. It assigns you a score and score is translated into a level of cardiovascular risk," Shinal said.

But the doctor warned because Mark doesn't have active symptoms, the scan probably wouldn't be covered by insurance.

Was there an understandable answer in there? I certainly couldn't find it.

Why pick on some yokel responding inarticulately to the local media's quest for content? Because this is, all too often, what the public hears: Ill-informed blather from someone who has little or no understanding of the issues. Maybe this doctor wanted his practice group to get some free publicity. "Doctor, could you just answer a few questions from viewers?"

Unfortunately, it's not just local media who are guilty of consulting with know-nothings with only passing knowledge of an issue. National media are guilty of it, too. The need to fill airtime with content is better filled with talking heads who present a compelling story, whether or not it is accurate or insightful, rather than an expert with deep insight into a topic who might not present as pretty a story. I've seen this countless times. A good portion of my day, in fact, is occupied responding to patient questions based on the misinformation presented in some media report.

My message of this brief rant: Be very careful of the messages delivered by the media, even if provided by some supposed "expert." In fact, I regard "experts" in health about as believable as politicians. Sure, sometimes they provide accurate information. But they often do not, or provide information with limited understanding. Or, worse, information intended to serve some hidden agenda.

Were the media to ask me to respond to the question, however, I would say:

"Yes, you should absolutely have a heart scan--yesterday! With your family history, there is no other way to accurately, easily, and inexpensively quantify the amount of coronary atherosclerosis in your heart's arteries. A stress test only uncovers advanced disease. A heart catheterization is overkill and absolutely not indicated in an asymptomatic man. Judging the presence of heart disease from cholesterol values is folly.

"What's left? A CT heart scan. So, yes, you need a CT heart scan ASAP with no doubt whatsoever."

But they didn't ask.

Although Dr. John Cannell's most recent Vitamin D Newsletter concerns the connection between autism and vitamin D, and has nothing to do with coronary plaque reversal, this fascinating discussion between a mother of an autistic boy and Dr. Cannell is so enlightening that I thought that it was still worth passing on.

I also feel very deeply for parents with autistic children, who I see struggle with the developmental difficulties their children encounter. (I even have several patients who are parents of 2 or 3 autistic children.)

As always, Dr. Cannell is at the cutting-edge of converting hard scientific information into practical use. You will note several points or questions raised:

1) Dr. Cannell advocates a powdered capsule form of vitamin D. In my experience, most powdered or tablet forms do not work. But some do. He apparently has success with the brand he specifies.

2) Are there vitamin D-receptor (VDR) genotypes that respond differently? Should there be different 25 (OH) vitamin D blood level targets for different VDR genotypes? Nobody knows yet, but it will be an important question to explore in the future.

3) Is heavy metal toxicity, at least in its milder forms, a surrogate for vitamin D deficiency? (Are chelationists unwittingly treating vitamin D deficiency?)

4) If this is a genuine association, and vitamin D replenishment exerts profound neurologic effects in autistic children, does a similar, though less marked effect, hold in non-autistic children? Will children perform better, learn more effectively, etc. with vitamin D supplementation to normal levels?

5) Vitamin A--Is vitamin A with vitamin D good or bad? This one I do not have an answer to. Reading the literature Dr. Cannell cites didn't help much. (Dr. BG--Any comments? Dr. BG is a vitamin A advocate.)

Perhaps, should the association between autism and vitamin D hold, it raises more questions than it settles. But, true to my experience with vitamin D, every day I stumble on some unique, fascinating effect, all beneficial. We continue to learn new lessons about vitamin D and Dr. Cannell's insights as a practicing psychiatrist deeply concerned with vitamin D issues have helped enormously.

(Sorry, but I did not copy the links to the literature Dr. Cannell cites. To obtain the links, go to the original Vitamin D Newsletter.)

The Vitamin D Newsletter
June 2008

This month we feature a remarkable series of letters from a mother of an autistic son who treated her child with vitamin D. It is the first case report in the medical literature suggesting vitamin D has a treatment effect in autism.

First, a brief case report and then a more detailed exchange of emails between the mother and me.

Case Report:

John is a seven-year old boy living in the northeastern U.S. with a long-standing diagnosis of autism. Symptoms include temper tantrums, repetitive self-stimulatory behavior, impaired language, mood swings, fear of being alone, toileting problems, dysbacteriosis, and impaired muscle strength. John spends a lot of time outdoors starting in the spring and his mother noticed a distinct seasonal variation in his symptoms in that he improved in the summer and regressed in the winter. A 25-hydroxy-vitamin D in April of 2008 was 25 ng/ml and obtained after John had begun to play outside. Due to the seasonality of John's symptoms the mother consulted me. I advised the mother to stop all products containing vitamin A including cod liver oil and begin John on 5,000 IU of vitamin D3 per day for two weeks followed by 2,000 IU per day in the form of powdered vitamin D dissolved in juice. Within a week of starting the vitamin D, John's language began to return and he was no longer as fearful of being alone. At the end of two weeks his language showed further improvement, he began to toilet himself, counted to 10 and knew the spelling of his name. After three weeks language continued to improve and some improvements were noted in his dysbacteriosis. After four weeks of vitamin D treatment, the mother noted improvements in muscle strength as well as continued improvements in language. A repeat 25-hydroxy-vitamin D is pending while John continues taking 2,000 IU of vitamin D per day.

Before you read the series of emails between the mother and me, I'd like to caution that this is only a case report of sorts and does not prove a treatment effect. Spontaneous remissions, while rare in autism, have been reported, thus the supplemental vitamin D may have had nothing to do with his improvement. If the response is due to vitamin D, there is no assurance it will prove lasting. I think it unlikely that older autistic children or individuals with severe autism will show these sorts of apparent improvements. Furthermore, autism is a multifactorial disease with strong genetic roots and it is highly unlikely that treatment of vitamin D deficiency in all autistic children will result in similar improvements. Finally, I did not examine this child, and I am relying on the child's mother to report both his condition and his apparent response to vitamin D treatment. However, the mother agreed to speak with the press about her son and allow for independent confirmation of the apparent treatment response.

Below are the emails, edited for brevity, clarity, and confidentiality.

Dear Dr. Cannell:

I am writing because I believe my son John is strongly affected by vitamin D and I need some advice. John is seven and autistic and weighs 50 pounds. We live in the northeastern part of the United States . He starts spending lots of time outside in May and continues until September. Every year, like clockwork, he has the same patterns of behavior and ability. After about six weeks of sun exposure, every July, he begins feeling much better, seems to be comfortable in his skin, does not have as much self-stimulatory behavior, can eat a variety of foods and has language. This past summer, he was using 14-word sentences. By the end of November, he can't even ask you for a cup of juice. He becomes more exclusive, has emotional highs and lows, has tantrums and is easily frustrated.

His 25(OH)D level on April 15th was 25 ng/ml but he had already been going out in the sun so his level must have been lower in the winter. I have had his genetics tested (Nutrigenomic) and he has mutations in his vitamin D receptors:

VDR Bsm/Taq ++
VDR Fok --
VDR Taq ++

My first question, does it sound like the changes in his behaviors and abilities could be caused by lack of vitamin D? Could you elaborate on the time it would take to get adequate amounts of vitamin D to start seeing positive results? For example, even if he starts going out in the sun in May, it's usually not until July that I see positive changes. Then would it take a month or two to go back to being deficient, thus explaining his 'regression' by the time November comes around. Secondly, I am looking at different forms of vitamin D therapy: a vitamin D lamp, vitamin D3 cream, or oral vitamin D. Can you tell me what might be the best form during the winter months?

Thank you very much for your time and attention.

Jane, Boston MA

Dear Jane:

Yes, it is possible your son's autism is related to vitamin D. Such seasonality has been reported before in autism, both in an individual and in autistic children at a summer camp. Although suggestive, such seasonality does not prove a vitamin D connection. Sun exposure, unless it is full body, takes several months to get vitamin D levels up. If sunblock or clothes are worn sun exposure will not get 25(OH)D levels much above 30 ng/ml. As far as the "mutations" you list, they are actually vitamin D receptor (VDR) polymorphisms and not referred to as mutations although all such changes occurred through mutations at some time in the past. VDR polymorphisms are simply the different structures of the vitamin D receptor that different people have and they are widely distributed. A pilot study of actual VDR receptor mutations did not detect VDR mutations in 24 autistic individuals but they did not assess for VDR polymorphisms. However, a highly significant association exists between one VDR polymorphism and larger head size. Mean head circumference is larger in autism.

Yan J, et al. Vitamin D receptor variants in 192 patients with schizophrenia and other psychiatric diseases. Neurosci Lett 2005;380(1-2):37-41.

Handoko HY, et al. Polymorphisms in the vitamin D receptor and their associations with risk of schizophrenia and selected anthropometric measures. Am J Hum Biol 2006;18(3):415-7.

Lainhart JE, et al. Head circumference and height in autism: a study by the Collaborative Program of Excellence in Autism. Am J Med Genet A 2006;140(21):2257-74.

Lainhart JE, et al. Macrocephaly in children and adults with autism. J Am Acad Child Adolesc Psychiatry 1997;36(2):282-90.

I emailed the world's foremost expert on VDR polymorphisms asking him about your son's polymorphisms and his reply, quite technical, is below.

Dear John:

I apologize for the delay in getting back to you regarding VDR polymorphisms. Initial studies by Eisman and coworkers many years ago suggested that several of the polymorphs identified above in the VDR gene (Bsm/Tag) correlated strongly with osteoporosis. Despite the hoopla, subsequent analyses by many different investigators did not really confirm these results, i.e. only a very modest (3%) correlation. This spawned multiple studies searching for correlations between VDR polymorph's and cancer, autoimmune disease and so forth. It is fair to say from all of these studies that the correlation is at best weak, and in most cases non-existent. Part of this may be due to the fact that the Bsm and Taq polymorphs are located in VDR gene introns and as a first approximation cannot affect the VDR protein's function. This is not an absolute statement, however, as our work is now showing that regulatory regions that control the VDR's expression are located within introns as well as upstream. Therefore the possibility exists that these polymorphs could affect expression, although we have not found these regions to contain enhancers yet. This is clearly where gene and disease studies are going. The only polymorph that could affect function is the Fok1 site, which we identified many years ago following our initial cloning and structural analysis of the human VDR gene. The presence of this site leads to the expression of a shorter VDR protein (424 aa) that is purported to have a slight increase in transcriptional activity (10%?) vs the large protein (427 aa). The above analysis suggests that this polymorph is absent, leading to production of the larger perhaps less active protein. On a single patient basis, it is really difficult to conclude anything regarding this finding. Indeed, despite large numbers of patients, the VDR polymorph have not really revealed any significant insight. Given the summer correlations, it is probably more likely that the individual is low in vitamin D3 in winter.

Sincerely,

Professor John Doe

Thus, one of your son's polymorphisms may have less functionality but that should be easily overcome by higher vitamin D levels. The first thing to do is stop all vitamin A, multivitamins containing vitamin A, or cod liver oil and start vitamin D. As you will see below, vitamin A antagonizes the action of vitamin D and he should have plenty of vitamin A if he eats colorful vegetables, colorful fruit, eggs and fortified oatmeal. As far as vitamin D, I think the easiest way to give vitamin D is powdered capsules, not a cream. You can open the capsule and put the powder in about anything, such as juice. To buy the capsules, go toBio Tech Pharmacal and buy both a bottle of the 5,000 and the 1,000 IU capsules. He should take one 5,000 IU capsule a day for two weeks then take 2,000 IU per day. After a month, go to the doctor and have another 25-hydroxy-vitamin D blood test. Do not let your doctor order a 1,25-dihydroxy-vitamin D as it will give you and your doctor false information about your son's vitamin D status. The other option is buying a Sperti vitamin D light. Daily use of the light on both sides of his trunk will raise levels fairly quickly but he should still have a 25(OH)D blood test every month to assure his levels rise to the mid level of normal ranges, about 70 ng/ml. Vitamin D is very safe. Your son would have to take more than 10,000 IU a day for more than a year to have any risk of toxicity. If he improves and his level is 50 ng/ml, the next question is would he improve even more if his level was 70 ng/ml? Some lifeguards have levels of 80-100 ng/ml; normal ranges in the labs in the USA are 30 -100 ng/ml (ideal ranges are 50 -100 ng/ml.) If you have any more questions, let me know. I certainly want to know how he is doing.

Sincerely,

John Cannell

Dear Dr. Cannell:

It has been one week on 5,000 IUs of vitamin D3 daily and already we're getting some language back! We haven't had original language since probably around the end of November. The only language we have had in the past five months has been verbal scripting. Today John has already told me "turn off the TV" and "clean up the water". This is all very exciting. Will it last? I will continue to keep you updated on progress and change in behavior. One more thing, all winter long he was afraid to be by himself anywhere. Now he is starting to be able to be in another room or outside by himself.

Thanks so much,

Jane

Dear Jane:

I can't tell you how happy I am for you. I suspect John will continue to improve. Do you have any parent rating scales or does his treating pediatrician have any objective rating scales? If you have before and after rating scales or his treating doctor does then it becomes important to track his progress on an objective measure. Jane, if you are a member of any autism discussion groups, you should post about this, including doses used. If your son's case is typical, then hundreds of thousands of autistic children may be helped with vitamin D.

John Cannell

Dear Dr. Cannell:

It has been two weeks on 5,000 IU per day and I want to inform you that we are having continued success with language. Continued in the sense that it is consistent, it wasn't just a one day fluke. In addition, he is taking himself to the bathroom; this is another thing that goes away in winter months. I usually have to catch him holding it in and then suggest he go, but now he is going completely by himself. In therapy last week, he started drawing again. He drew a bee and then ran around the room buzzing. His toileting is consistent with his therapists, not just mommy. Last night, I asked him to count to 10 for me and he did - quite enthusiastically. Then I said what does J-O-H-N spell? It took him a bit but then he said "John."

Unfortunately, the last scale taken was when he was 3 when he had his first developmental evaluation. But we do track behavior and language on a weekly basis. The forms we fill out give a good indication as to how he is doing.

I belong to a parent forum. It was created by a doctor named Amy Yasko. She's a PhD, a researcher, not a medical doctor. It was through her that I got John's genetics tested. She advocates vitamin D as being very crucial. I will post something on her forum for the parents there. However, if the parents on the forum are following her recommendations, they should be taking it already - 2000 IUs in winter and 1000 IUs in summer is her recommendation. I will post something on the forum to really emphasize how important vitamin D is.

Jane

Dear Jane:

I'm glad the improvements are continuing. I see Dr. Yasko recommends 10,000 IU of vitamin A/day as well as cod liver oil. I strongly disagree. Make sure your son is taking neither vitamin A nor cod liver oil. Rather, make sure he eats colored fruits and vegetables as well as fortified oatmeal. Vitamin A interferes with vitamin D's function, especially at the doses Dr. Yasko recommends.

Vitamin A antagonizes the action of vitamin D. In humans, even the vitamin A in a single serving of liver impairs vitamin D’s rapid intestinal calcium response. Furthermore, the consumption of preformed retinols, even in amounts consumed by many Americans in both multivitamins and cod liver oil appears to be causing low-grade, but widespread, bone toxicity, perhaps through its antagonism of vitamin D. In a recent dietary intake study, Kyungwon et al found high retinol intake completely thwarted vitamin D’s otherwise protective effect on distal colorectal adenoma and they found a clear relationship between vitamin D and vitamin A intakes as the women in the highest quintile of vitamin D intake also ingested almost 10,000 IU of retinols/day. As early as 1933, Hess et al warned about vitamin A consumption, concluding, “as to a requirement of thousands of units of vitamin A daily, the unquestionable answer is that this constitutes therapeutic absurdity, which, happily, will prove to be only a passing fad.”

Rohde CM, Deluca HF. All-trans retinoic acid antagonizes the action of calciferol and its active metabolite, 1,25-dihydroxycholecalciferol, in rats. J Nutr. 2005;135(7):1647-1652.

Johansson S, Melhus H. Vitamin A antagonizes calcium response to vitamin D in man. J Bone Miner Res. 2001;16(10):1899-1905.

Penniston KL, Tanumihardjo SA. The acute and chronic toxic effects of vitamin A. Am J Clin Nutr. 2006;83(2):191-201.

Oh K, Willett WC, Wu K, Fuchs CS, Giovannucci EL. Calcium and vitamin D intakes in relation to risk of distal colorectal adenoma in women. Am J Epidemiol. 2007;165(10):1178-1186.

Hess AF, Lewis JM, Barenberg LH. Does our dietary require vitamin A supplement? JAMA. 1933;101:657-663.

Unfortunately, Hess’s prophecy of a passing fad proved premature and many Americans continue to consume “absurd” and dangerous quantities of vitamin A. For example, multivitamins, until recently, had small amounts of vitamin D (200 to 400 IU) but high amounts of preformed retinols (5,000 to 10,000 IU). This pales in comparison to a tablespoon of modern cod liver oil, which contains sub-physiological amounts of vitamin D (400 to 1200 IU) but supra-physiological amounts of completely preformed retinols (5,000 to 15,000 IU or in some cases 30,000 IU).

John Cannell

Dear Dr. Cannell:

It has been three weeks and he went from 5,000 IU of vitamin D per day to 2,000 IU per day a week ago. His language is increasing. He's now back to saying the things he wants with some prompting. He also has gut dysbiosis and I'm sure the D is helping with microbes in his gut. He has a lot of problems with his immune system and bacteria and viruses. Also, doesn't vitamin D aid in the production of glutathione? I feel that could be a big part of his increased language.

Jane

Dear Jane:

Yes, abnormal immune responses are associated with both autism and vitamin D deficiency. For example, autistic individuals have immune abnormalities that show a striking similarity to the immune functions affected by vitamin D. Animal evidence indicates some vitamin D deficiency induced brain damage may be malleable, that is, vitamin D may partially reverse the brain damage, if given early enough. These studies offer hope that sunlight or oral vitamin D, especially in young autistic children, may have a treatment effect.

Ashwood P, et al. The immune response in autism: a new frontier for autism research. J Leukoc Biol 2006;80(1):1-15.

Cantorna MT, et al. Vitamin D status, 1,25-dihydroxyvitamin D3, and the immune system. Am J Clin Nutr 2004;80(6 Suppl):1717S-20S.

Burne TH, et al. Combined prenatal and chronic postnatal vitamin D deficiency in rats impairs prepulse inhibition of acoustic startle. Physiol Behav 2004;81(4):651-5.

Both the brain and the blood of autistic individuals show evidence of ongoing chronic inflammation and oxidative stress. That is, the disease process is probably increasingly destructive. Further hope for a treatment effect rests in activated vitamin D's powerful anti-inflammatory properties. Its administration reduces production of inflammatory cytokines in the brain, which have consistently been associated with cognitive impairment. Furthermore, activated vitamin D is remarkably neuroprotective by stimulating neurotropin release, reducing toxic cellular calcium levels in the brain, inhibiting the production of nitrous oxide, and by its immunomodulating properties, especially in reducing inflammatory cytokines and by increasing brain glutathione.

Moore ME, Piazza A, McCartney Y, Lynch MA. Evidence that vitamin D3 reverses age-related inflammatory changes in the rat hippocampus. Biochem Soc Trans 2005;33(Pt 4):573-7.

Cohen-Lahav M, Shany S, Tobvin D, Chaimovitz C, Douvdevani A. Vitamin D decreases NFkappaB activity by increasing IkappaBalpha levels. Nephrol Dial Transplant 2006;21(4):889-97

Kalueff AV, Eremin KO, Tuohimaa P. Mechanisms of neuroprotective action of vitamin d(3). Biochemistry (Mosc) 2004;69(7):738-41.

This last function of vitamin D, increasing cellular levels of glutathione, may explain the purported link between heavy metals, oxidative stress, and autism. For example, activated vitamin D reduces iron-induced and zinc-induced oxidative injuries in rat brain. The primary route for the neurotoxicity of most heavy metals is through depletion of glutathione and subsequent generation of reactive oxygen and nitrogen species. Besides its function as a master antioxidant, glutathione acts as a chelating (binding) agent to remove heavy metals. Several studies indicate autistic individuals have difficulty excreting heavy metals, especially mercury. If vitamin D deficient brains are unable to utilize glutathione properly, and thus unable to remove heavy metals, they may be oxidatively damaged by heavy metal loads normal children easily excrete. The amount of activated vitamin D in the brain directly depends on how much vitamin D is made in the skin or put in the mouth.

Garcion E, Wion-Barbot N, Montero-Menei CN, Berger F, Wion D. New clues about vitamin D functions in the nervous system. Trends Endocrinol Metab 2002;13(3):100-5.

Chen KB, Lin AM, Chiu TH. Systemic vitamin D3 attenuated oxidative injuries in the locus coeruleus of rat brain. Ann N Y Acad Sci 2003;993:313-24.

Lin AM, Chen KB, Chao PL. Antioxidative effect of vitamin D3 on zinc-induced oxidative stress in CNS. Ann N Y Acad Sci 2005;1053:319-29.

Valko M, Morris H, Cronin MT. Metals, toxicity and oxidative stress. Curr Med Chem 2005;12(10):1161-208

Kern JK, Jones AM. Evidence of toxicity, oxidative stress, and neuronal insult in autism. J Toxicol Environ Health B Crit Rev 2006;9(6):485-99.

Sincerely,

John Cannell

Dear Dr. Cannell:

It has been a month now and John's Improvements are continuing. In the last week, he has been using his muscles more, he goes on the swing outside and lifts his legs and bends in ways that take core muscle strength. This is yet another skill or interest that left and is returning. I will report more next week.
Jane

Conclusion:

It is too early to say vitamin D has a treatment effect in autism. However, a simple risk/benefit analysis suggests that autistic children should be diagnosed and aggressively treated for vitamin D deficiency. If readers want to learn more about vitamin D and autism, they can obtain the entire paper on the link below. Unfortunately, Elsevier charges $31.50 to download it. You can read a similar document for free on the website, where we first published the theory a year ago.

Cannell JJ. Autism and vitamin D. Med Hypotheses. 2008;70(4):750-9.

http://vitamindcouncil.org/newsletter/2007-may.shtml

In summation, autistic children should be given enough vitamin D to get their 25(OH)D levels up to the mid to high range of normals, that is, 70 ng/ml (175 nmol/L in countries that use the metric system). In the absence of sun exposure, this usually requires long-term administration of about 1,000 IU/day per 20 pounds of body weight with a loading dose of 2,000 IU of vitamin D/day for every 20 pounds of body weight for the first two weeks. As individual variation in response is very high, they should have 25(OH)D blood tests every month until their level has stabilized around 70 ng/ml. They should stop all products containing preformed retinols (vitamin A), especially cod liver oil.

John Cannell, MD
The Vitamin D Council

This is a periodic newsletter from the Vitamin D Council, a non-profit trying to end the epidemic of vitamin D deficiency. If you don't want to get the newsletter, please hit reply and let us know. As we are a 501(3)(c) non-profit corporation, dedicated to ending vitamin D deficiency and not making money, the Vitamin D Council does not copyright this newsletter. Please reproduce it and post it on Internet sites. If this newsletter proves useful to a child you know with autism, the Vitamin D Council asks for a donation as we have not been able to secure a grant and our bank account balance is again below $5,000. Send your tax-deductible contributions to:

The Vitamin D Council
9100 San Gregorio Road
Atascadero, CA 93422

Rather than the headline New Study Could Change Heart Disease Diagnosis And Treatment being run in Utah TV and newspapers, instead it should read:

Make big money fast with CT scans!

Is your bottom line shrinking? Have you fallen on hard economic times? Is competition from other hospitals and providers threatening your financial health?

Then we have a solution: Do a CT coronary angiogram on everybody! Look for disease in people with no symptoms, scare the heck out of them, and voila! Instant need for bypass surgery!

Ka-ching!! That'll be $100,000, please.

Do it again, and again, and again, and your hospital will be quickly in the black in no time!

And, for the savvy marketer, tell the newspapers that you're going to conduct a study to see if this approach works--even before the study gets started! Even if the study pans, you'll come out a winner because you did it in the name of "research"!

Apparently a group of cardiologists at the Intermountain Medical Center and LDS Hospital in Salt Lake City, with the financial assistance of Siemens, a manufacturer of CT scanners, is funding a 1000-patient study of diabetics, all without symptoms of heart disease, half of whom will undergo "screening" CT coronary angiograms (not heart scans) followed by bypass surgery, if "needed". The other half will receive conventional, "aggressive" medical therapy. "Aggressive" means cholesterol treatment, blood pressure control, and blood sugar control (no kidding).

The outcomes of the two groups will be compared after two years.

To understand the absurdity of this study, note that they are proposing what amounts to "prophylactic" bypass surgery, since the participants are without symptoms. Since there are no stress tests, a measurement of flow or functional capacity (exercise tolerance) cannot be factored in. Decisions will be made on the basis of severity of "blockages" in asymptomatic people, a hazardous notion that has never been shown to provide benefit. No doubt: Some diabetics with extensive disease may obtain benefit from screening, but many more will undergo what amounts to unnecessary bypass that provides no benefit. We already know from studies dating back over 20 years to the days of the original CASS (Coronary Artery Surgery Study) that putting asymptomatic people through bypass surgery willy-nilly does not reduce mortality.

Of course, the "aggressive" preventive treatment they propose is more like the least common denominator level of treatment. In fact, I would characterize the "aggressive" preventive treatment as ridiculous. Doing less would be malpractice. Much more could be done, but doing a lot more would pose a real challenge to the bypass arm of the trial.

But the smell of money drives such efforts: More CT angiograms, more hospitalization for bypass surgery. The payoff to the hospitals from this effort is likely to exceed $5 to $10 million, all money that they might not have otherwise seen. The ill-informed people in the local media gush with enthusiasm, the hospital acts like they are at the cutting edge of medical technology, the doctors pose as saviors.

All this time, real preventive efforts go unmentioned. No fish oil (28% reduction in heart attack, 45% reduction in sudden death from heart attack), no genuine diet efforts (i.e., not the diabetes-promoting American Diabetes Association diet), no effort to identify sources of coronary risk beyond LDL cholesterol (low HDL,small LDL,and postprandial or after-eating abnormalities, for instance, are prominent sources of risk in diabetics), no vitamin D. In my view, the preventive arm of the study amounts to doing virtually nothing beyond prescribing statin drugs.

Don't fall for it.

The Fountain of Youth, Louis Cranach the Younger (1546)

In the Track Your Plaque program, we sometimes use the adrenal hormone, DHEA. It is a fascinating and--surprisingly--an over-the-counter hormone that can be useful and safe when used properly.

DHEA can be useful for:

--Reduction of Lp(a)--Though more effective in females, it can also be useful in males. In the women, DHEA often reduces Lp(a) 15-18%, somewhat less in males. The lower the starting DHEA, the greater the Lp(a) reduction.

--Improved libido--in both men and women. The effect is modest. It's magnified when used with other strategies. Although this is not specifically a goal in the program, it sure helps to get side-benefits like this, rather than unwanted side-effects.

--Increased energy and mood--The boost in mood is, for many, the most perceptible effect: More ambition, more stamina, greater staying power in work and exercise.

--Reduction in abdominal (visceral) fat--A modest effect, but one that, over a long period of use (>6 months) can yield improved insulin responses.

Most commonly, I will suggest DHEA supplementation when blood levels allow. Some people, however, Google "DHEA" and come back horrified that I would suggest such a dangerous supplement.

"I read that it makes women grow mustaches and makes their voices deeper!"

And it does--if you take a lot.

10-15 years ago, when the benefits of DHEA became apparent, some people wanted to believe that DHEA was the fountain of youth. People interested in the anti-aging potential for DHEA figured that, if 50 mg per day made you feel energized and vigorous, what would be the effect of 1000 mg, 2000 mg, or 3000 mg per day? A number of clinical trials were conducted using these doses and, interestingly, depression can lift, men and women increase muscle mass, there is a slight increase in bone density, even pain symptoms from rheumatoid arthritis and lupus may improve. But . . . women grow mustaches, become sexually aggressive, and develop deep voices. Men can become hyperaggressive or overly emotional.

No wonder: Any hormone taken in extraordinary, supraphysiologic doses will exert wacky effects. Imagine taking testosterone or estrogen at 50 times the usual dose.

The doses we use for the above benefits, including Lp(a) reduction, range from 25-100 mg per day; most people do fine with 50 mg. We also adjust doses to starting blood levels. In this dose range, I have never seen any of the above side-effects.

The only side-effects I see at these doses are 1) excessive assertiveness or crabbiness, and 2) insomnia if taken at bedtime.

In my experience, DHEA is a benign hormone, provided it is taken in limited doses and not abused. An occasional female younger than 55 years old will be able to tolerate only 10-20 mg per day before developing the edgy side-effects, but I've never witnessed masculinizing side-effects at these low doses, nor have I ever seen excessive increases in testosterone in men or women. (Women can raise testosterone levels slightly, but almost never enough to exert much effect beyond modestly increased libido.)

Copyright 2008 William Davis, MD

Here is detailed comment from a reader who figured out the wheat (and dairy) issue on her own with impressive results.

Though it seems an unpardonable over-simplification of diet, this concept of eliminating wheat-based products (along with obvious unhealthy foods like candy and soda) yields unexpectedly large results, as our reader relates.

Hi Dr. Davis,

Several years ago, chronic untreated asthma infections hospitalized me. I thought it was recurring bronchitis as I'd never had asthma in my life. Killed much of the alveoli... took awhile to de-crap the lungs and regrow the alveoli. Got assigned a cardiologist sort-of by accident while in the hospital for that (couple days of constant heated steroid, stress, a pain + situation combined, elevated my heart rate to 298 for a brief time). When I went to see him, he wrote me a prescription for the Eades' PPLP [Protein Power LifePlan] book.

It's taken awhile, since it's required radical gradual changes in most aspects of my overly Type-A life, but I'm now about 140 lbs lighter, and hopefully much more in the future.

Miraculously, after 10 days on a hard meat-eggs-cheese-veggie-berry approach (which I sadly confess was mostly pepperoni & mozz nuked... I was busy! ;-)), all my medical symptoms disappeared too. Acid reflux, acne, brain-fog, rashes, 'severe asthma', allergies, etc. etc. By trial and error I realized I wrongly attributed that to lowcarbing when it was getting off gluten that actually did it for me. Which since I'm lowcarb also means all the crap my celiac boyfriend can eat, I can't. Lowcarb does many great things for me (just dropping all the bloating and increasing the energy level are awesome), but getting off wheat was critical.

I've since found that a single tablespoon of "milk" in the morning, or something with wheat (say a tortilla), will make me ravenous *specifically for milk and wheat* all day. Conversely, I can be eating lowcarb and then eat total junk--but something without gluten--and not have it bother me much at all. But one pumpernickel slice at Outback and I am DOOMED. It doesn't always happen that instant; will-power has some sway; but the odds of my making a 'poor decision that leads to cascade failure and totally abandoning my eating plan' in the next 48 hours is astronomically higher if milk or wheat were involved. Oddly, cheese does not seem to affect me this way.

When I was younger (I'm 42 now) I had to stop drinking milk. If I drank some I wanted more. If I drank more I needed more. If I drank more, that was it: I'd be stumbling to the kitchen in the dark at 3am, drinking out of the carton, falling gasping against the refrigerator after several long gulps, like a heroin addict who just got a fix. I finally realized that since I'd lived on a ton of milk my whole life, maybe this was a milk problem; so I usually stayed away from it. So then it turned out wheat/gluten were an issue too. Which made me realize how much of my life was filled with not-eating most of the time (very busy, workaholic, but very sedentary), but when I did eat, ingesting amazing amounts of wheat products. I'm astounded that my whole life I mostly ate things I am apparently intolerant to "or something." Sometimes I wonder how much different even my brain would be if it'd been different.

This might contribute to my ending up weighing 500# at one point. The only amazing thing is that I didn't get a disease. (Well I did--obesity--but I mean any others.) I'm from a family of people who are mostly fat, mostly alcoholic, and mostly dead of cancer. I'm just fat, worse than the others but otherwise seemingly ok. Now I'm starting to think that maybe my whole family may have some 'issue' with the primary foods of our culture.

I tell friends that my horrible chronic acid reflux was solved merely by getting off gluten. They nearly all say, "I could never give up bread!" (Isn't it funny, you never hear people say, "Oh man, I could never give up broccoli!") I tried to convince one young friend to try it; her doctor told her eating more protein and fat was unhealthy, and gave her a prescription (this is lifetime--it doesn't cure it, merely treats the symptom) to a drug to help with acid reflux. I said you're kidding me, you think taking a drug the rest of your life is healthier than trading your pasta for a steak?? Go figure.

I still haven't figured out the milk connection (or why I seem ok with cheese for some reason; maybe there is a dosage-difference, or the sugar combined with it has some effect), but I think it's pretty clear that dropping milk and wheat has very radically changed my life for the better. I may actually live, which being a single mom to an awesome 11 year old girl, is a good thing.

Best,
P.

Given the confusion over what constitutes the "ideal" diet, a discussion that has been hotly debated for decades, some people become very angry that we still don't agree on what is truly healthy.

"Why should I even try if the experts don't agree? They say something is bad one day, then say it's okay the next!"

But that's a short-sighted half-truth born of frustration. We have certainly zigzagged in our understanding of diet over the years. The grand national experiment in low-fat eating, for instance, clearly failed to improve our health. In fact, the opposite occurred: The largest epidemic of obesity and diabetes in world history. You could get angry from this failed experiment . . . or you could learn from it, take what lessons we can and improve on it.

Step back for a moment and consider: In what other age could we even have this discussion?

If we lived in a world where you were hungry, your children were hungry, and you didn't know where the day's food was to be found, we would have no need whatsoever for this conversation: You would take whatever you could find, kill, or steal.

Say you woke up this morning and your cabinets and refrigerator were empty. The stores were far away or non-existent. You and your family would have to improvise, to forage or hunt your day's food. It would require hours. You wouldn't fuss about glycemic index, or saturated fat, or whether or not sugar or wheat was present. You would just eat whatever you could get your hands on. When caloric deprivation threatens, we take what is available.

But we live in a world of plenty--of enormous excess--that allows us choices. It is a world that encourages eating more than is required for existence, a world tailored more to indulgence than to simple satiety or sustenance. That's when distinctions among food types and quality make a difference. But it is a dilemma born of riches.

Starvation and caloric deprivation would settle the argument for us very quickly. It doesn't mean that we shouldn't continue to debate the finer points of diet. But don't do it with anger or frustration. Do it GRATEFULLY, recognizing that we are lucky to be able to have such a conversation in the first place.

Image courtesy Food and Agriculture Organization of the United Nations.

I frequently peruse conventional health websites to keep track of their message. One painfully conventional (read "drug company-supported") website that echoes the standard advice on heart disease and heart health is Everyday Health .

Since I subscribe to the newsletters for many conventional sites, I received an e-mail that took me to this Q & A about HDL cholesterol:

Q: I'm 36 years old and my good cholesterol is too low. What can I do?
– Nilsa, Florida

Dr. Lori Mosca of New York-Presbyterian Hospital responds:

A: A woman's HDL goal should be greater than 50 mg/dL (greater than 40 mg/dL in men). You can raise your HDL levels by eating a diet low in saturated fat and trans fat but high in monounsaturated fats. Lose weight if you need to and get at least 30 minutes of moderate-intensity exercise on a minimum of four days per week. If you smoke, quit. Despite positive lifestyle changes, though, some individuals may still be candidates for HDL-raising drug therapy because they are at increased risk for cardiovascular disease. Discuss your options with your health care provider.

Are you satisified with that answer? I certainly am not.

First of all, is this something you've never heard before? "Eat right, exercise, cut your unhealthy fats." Then why do people who follow this sort of conventional advice often still fail? Is the next step always medication?

Here's the part that Dr. Mosca and other conventional, drug-minded "authorities" have left out:

To raise HDL powerfully--not to 40 mg/dl for males or 50 mg/dl for females, but to 60, 70 or 80 mg/dl--think about the following strategies:

--Eliminate wheat and cornstarch products. I have droned on endlessly about this concept, but it is enormously effective. While the weight loss that inevitably follows elimination of these foods adds to the HDL-raising effect, there is also an independent effect, as well.

--Fish oil--The omega-3 fatty acids in fish oil reduce triglycerides. Triglycerides accelerate the destruction of HDL. Remove triglycerides, HDL goes up. (Though krill oil may share, even surpass this effect, we need more data than the single manufacturer-sponsored study.) Of course, this requires real doses, not the namby-pamby doses you often read about.

--Vitamin D--Achieving normal levels of 25(OH) vitamin D raises HDL with power I have never witnessed from any other strategy before, barring weight loss of 30+ lbs. Readers of the Heart Scan Blog know that just taking vitamin D is not enough. Verification with blood levels is an absolute necessity, particularly if raising HDL maximally is among your goals.

--Adding back saturated fat. I say "adding back" since most of us (including myself) went too far down the "saturated fat is bad" path over the past few years. While I do not advocate a carte blanche approach to saturated fat, I believe that adding back eggs (preferably free-range and/or omega-3 rich), lean meats, and hard cheeses is a good idea. The saturated fat in these foods raise HDL 5 or more mg/dl.

--Dark chocolate--Or other cocoa prepartions. What a cool way to raise HDL! Reach for the lowest-sugar, highest cocoa preparations.

--Alcoholic beverages--I am partial to the red wine/flavonoid-rich concept, being a wine drinker. Although all alcoholic beverages raise HDL due to the ethanol content, for benefits beyond alcohol (as well as to avoid wheat-based drinks like beer), I do believe that the bulk of data argue for flavonoid-rich red wines from southern France, Italy, and California.

--Achieve ideal weight--The toughest of all. But eliminating wheat and cornstarch makes it far easier.

Follow the conventional advice of those like Dr. Lori Mosca, and the majority of people will fail. ("It just so happens that I have a prescription drug just for that purpose!")

Buck the conventional advice, adopt strategies that won't be found in the drug ads, nor be provided by the conventionally-thinking, and you can succeed to heights you never thought possible.

Copyright 2008 William Davis, MD

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