Unexpected effects of a wheat-free diet

Wheat elimination continues to yield explosive and unexpected health benefits.

I initially asked patients in the office to eliminate wheat because I wanted to help them reduce blood sugar and pre-diabetic tendencies.

A patient would come to the office, for example, with a blood sugar of 118 mg/dl (in the pre-diabetic range) and the other phenomena of pre-diabetes or metabolic syndrome (high blood pressure, high inflammation/c-reactive protein, low HDL, high triglycerides, small LDL), and the characteristic wheat belly. Eliminate wheat and, within three months, they lose 30 lbs, blood sugar drops to normal, blood pressure drops, triglycerides drop by several hundred milligrams, HDL goes up, small LDL plummets, c-reactive protein drops.

People also felt better, with flat tummies and more energy. But they also developed benefits I did not anticipate:

--Improved rheumatoid arthritis--I have seen this time and time again. Eliminate wheat and the painful thumbs, fingers, and other joints clear up dramatically. Many former rheumatoid sufferers people tell me that one cracker or pretzel will trigger a painful throbbing reminder that lasts a couple of hours.

--Improved ulcerative colitis--People incapacitated with pain, cramping, and diarrhea of ulcerative colitis (who are negative for the antibodies for celiac disease) can experience marked improvement. I've seen people be able to stop all their nasty colitis medications just by eliminating wheat.

--Reduction or elimination of irritable bowel syndrome

--Reduction or elimination of gastroesophageal reflux

--Better mood--Eliminating wheat makes you happier and experience more stable moods. Just as wheat is responsible for a subset of schizophrenia and bipolar illness (this is fact), and wheat elimination generates dramatic improvement, when you or I eliminate wheat, we also experience a "smoothing" of mood swings.

--Better libido--I'm not sure whether this is a consequence of losing a belly the size of a watermelon or improvement in sex hormones (esp. testosterone) or endothelial responses, but more interest in sex typically develops.

--Better complexion--I'm not entirely sure why, but various rashes will often dissipate, bags under the eyes are reduced, itching in funny places stops.


It's also peculiar how, after someone eliminates wheat for several months, re-exposure of an errant cracker or sandwich results in cramping and diarrhea in about 30% of people.

Obviously, people with celiac disease, who can even die of exposure to wheat, are even worse. What other common food do you know of that makes us sick so often, even occasionally with fatal outcome?

Is Lp(a) part of your legacy to your children?

If you have lipoprotein(a), Lp(a)--the most aggressive known cause of heart disease that no one has heard of--then you need to tell your children.

Lp(a) is a "cleanly" inherited genetic pattern: If either parent has it, there's a 50% chance that you have it. If you have it, then there's a 50% likelihood that each of your children has it. (Note that each child experiences a likelihood of 50%, not 50% of your children. This is because each child is conceived as an independent statistical event. So much for romance!)

The atherogenicity (plaque-causing potential) of Lp(a) also tends to get transmitted. In other words, if your Dad had a heart attack at age 50 due to Lp(a) and you share Lp(a), then you likely share a similar magnitude of risk as your Dad. If your Mom had Lp(a), though passed quietly at age 89 without any overt evidence of heart disease, then you are likely to share the relatively benign form of Lp(a).

For most of us with Lp(a), however, it is best to assume that it has at least some potential for causing heart disease, being the most aggressive cause known. (That is, until we have the ability in everyday clinical practice to characterize Lp(a) by assessing such factors as the size of the apoprotein(a) molecule, the number of kringle "repeats" on the tail, etc. Until then, we need to rely on the crude, though helpful, observation of family history.)

At what age should you inform your children? There's no hard-and-fast rule. However, I generally suggest to patients that they talk about Lp(a) with their children when they reach their 20s or 30s, old enough to begin to understand the implications and begin to think about adopting healthier lifestyles. Is treatment required at, say, age 35? That depends on the pattern of Lp(a)-related heart disease in the family: With exceptionally aggressive forms, it might be reasonable to begin treatment at this relatively early age.

Do "Heart Healthy" sterols cause heart disease?

The sterol question continues to pop up.

Sterols are an ingredient widely added by food manufacturers that allows a "heart healthy" claim, since sterols have been shown to reduce LDL cholesterol (at least transiently). HOWEVER, sterols have also been implicated in possibly increasing risk for heart disease. After all, people with the genetic condition called sitosterolemia absorb sterols into the blood and develop coronary heart disease in their teens and twenties. Those of us without sitosterolemia who increase sterol intake with sterol-enriched foods increase blood levels of sterols several-fold. Is this healthy, or does it contribute to coronary plaque as it does in people with sitosterolemia?

Below, I've reprinted a previous Heart Scan Blog post on sterols.


Sterols should be outlawed

While sterols occur naturally in small quantities in food (nuts, vegetables, oils), food manufacturers are adding them to processed foods in order to earn a "heart healthy" claim.

The FDA approved a cholesterol-reducing indication for sterols , the American Heart Association recommends 200 mg per day as part of its Therapeutic Lifestyle Change diet, and WebMD gushes about the LDL-reducing benefits of sterols added to foods.


Sterols--the same substance that, when absorbed to high levels into the blood in a genetic disorder called "sitosterolemia"--causes extravagant atherosclerosis in young people.

The case against sterols, studies documenting its coronary disease- and valve disease-promoting effects, is building:

Higher blood levels of sterols increase cardiovascular events:
Plasma sitosterol elevations are associated with an increased incidence of coronary events in men: results of a nested case-control analysis of the Prospective Cardiovascular Münster (PROCAM) study.

Sterols can be recovered from diseased aortic valves:
Accumulation of cholesterol precursors and plant sterols in human stenotic aortic valves.

Sterols are incorporated into carotid atherosclerotic plaque:
Plant sterols in serum and in atherosclerotic plaques of patients undergoing carotid endarterectomy.




Though the data are mixed:

Moderately elevated plant sterol levels are associated with reduced cardiovascular risk--the LASA study.

No association between plasma levels of plant sterols and atherosclerosis in mice and men.




The food industry has vigorously pursued the sterol-as-heart-healthy strategy, based on studies conclusively demonstrating LDL-reducing effects. But do sterols that gain entry into the blood increase atherosclerosis regardless of LDL reduction? That's the huge unanswered question.

Despite the uncertainties, the list of sterol-supplemented foods is expanding rapidly:




Each Nature Valley Healthy Heart Bar contains 400 mg sterols.












HeartWise orange juice contains 1000 mg sterols per 8 oz serving.













Promise SuperShots contains 400 mg sterols per container.














Corozonas has an entire line of chips that contain added sterols, 400 mg per 1 oz serving.














MonaVie Acai juice, "Pulse," contains 400 mg sterols per 2 oz serving.














Kardea olive oil has 500 mg sterols per 14 gram serving.










WebMD has a table that they say can help you choose "foods" that are sterol-rich.

In my view, sterols should not have been approved without more extensive safety data. Just as Vioxx's potential for increasing heart attack did not become apparent until after FDA approval and widespread use, I fear the same may be ahead for sterols: dissemination throughout the processed food supply, people using large, unnatural quantities from multiple products, eventually . . . increased heart attacks, strokes, aortic valve disease.

Until there is clarification on this issue, I would urge everyone to avoid sterol-added "heart healthy" products.


Some more info on sterols in a previous Heart Scan Blog post: Are sterols the new trans fat? .

Why obese people can't fast

Why do obese people claim it is impossible to fast?

Most overweight people are terrified at the prospect of facing any period of time without ready access to food. Persuading them to begin a program of intermittent fasting is a hopeless cause. They just refuse.

Contrary to popular opinion, this is not just glutonny at work. It is the effect of what I call "the cycle of hunger," the 2-hour up and down cycle of rising sugar and insulin, followed by their inevitable fall. The precipitous fall of sugar and insulin triggers mental fogginess, fatigue, and insatiable hunger. (By the way, this is the same phenomenon underlying the silly notion of "grazing.")

According to an LA Times article, fasting may be difficult to impossible for some people:

"Ruth Frechman, a registered dietitian in Burbank and spokeswoman for the American Dietetic Assn., says she frequently sees such extreme strategies backfire. 'You're hungry, fatigued, irritable. Fasting is not very comfortable. People try to cut back one day and the next day they're starving and they overeat.'"
(Not surprising, coming from the American Diatetic Assn. They, along with such agencies as the American Diabetes Association, are vocal proponents of low-fat, high-carbohydrate, "healthy whole grain" diets--you know, the diets that make us fat and diabetic.)

Ms. Frechman is correct: Having someone engage in a period of fasting, no matter how brief, when the diet leading up to the fast is filled with "healthy whole grains" and other carbohydrates will result in painful hunger that eventually overcomes any effort. A period of overeating typically follows the aborted attempt.

Fasting cannot work as long as the 2-hour cycle of hunger continues. The first step: Eliminate the 2-hour cycle of hunger by dramatically reducing or eliminating carbohydrates. Our preferred method is to eliminate wheat, cornstarch, and sugars. (Just be aware of wheat withdrawal, the fatigue that develops in the first 5 days after wheat elimination that affects up to 30% of people.)

Once wheat, cornstarch, and sugars are eliminated, hunger reverts to that of physiologic need--appetite will be smaller and less intense, since it is driven by your body's needs, not by abnormal stimulation from wheat, cornstarch, and sugar. The fear of not having food dissolves, the 2-hour cycle of mental fogginess, fatigue, and hunger will be gone.

Intermittent fasting is a wonderful strategy for reducing weight; gaining control over lipids, lipoproteins, and coronary plaque; regaining appreciation for food; reducing appetite. But it's not even worth trying unless you've already eliminated the unnatural appetite triggers that will booby-trap any fasting effort.

Test your own thyroid

134 people responded to the latest Heart Scan Blog poll:


When I ask my doctor to test my thyroid, he/she:

Accommodates me without question 45 (33%)

Questions why, but orders the tests 49 (36%)

Refuses because you seem "healthy" 20 (14%)

Refuses without explanation 4 (2%)

Ridicules your request 16 (11%)



That's better than I anticipated: 69% of physicians complied with this small request. After all, you're not asking for major surgery. You're just asking for a very basic test, as basic as a blood count or electrolytes. 36% of respondents said that their doctor asked why, but still complied; this is simply practicing good medicine--If there is a problem, your doctor would like to know about it.

However, the remainder--31%--were refused in one way or another. Incredibly, 11% were ridiculed.

Although this was not asked in the poll, I believe that it is a safe assumption that you asked with good reason: you're abnormally fatigued, you have been gaining weight for no apparent reason or can't lose weight despite substantial effort, or you feel cold at inappropriate times.

Let's say you're tired. Ever since last summer, you've suffered a gradual decline in energy.

So you ask your doctor to assess your thyroid. He refuses. "You're just fine! There's nothing wrong with you."

You disagree. In fact, you are quite convinced that there is something physically wrong. What do you do?

You could:

--Drink more coffee
--Exercise more in the hopes that it will snap you out of your lethargy
--Sleep more
--Take stimulants of various sorts

Or, you could get your thyroid assessed and settle the issue. But how can you get this done when your doctor won't accommodate you, even though you have perfectly fine health insurance and are simply interested in feeling better and preserving your health?

You could test your thyroid yourself. This is why we're making self-testing kits available. Test kits are available here.

This is yet another facet of the powerful revolution that is emerging: Self-directed health.

Trains, planes, and heart scans

A Heart Scan Blog reader posted the following question:

It is not clear to me why getting a cardiac scan is the necessary first step, if in fact the next step would be to bring down small LDL particles which is revealed on a NMR lipoprofile or VAP test. Why isn't the NMR or VAP test the first thing?

Good question. Think of it this way:

Lipoproteins, as measured via VAP (Vertical Auto Profile) or NMR (Nuclear Magnetic Resonance), provide a snapshot of risk from a metabolic viewpoint at that moment. Lipoproteins shift with the tides of age, menopause, weight changes, even what you ate last evening for dinner (especially small LDL). There are also other factors that cause coronary plaque, as well, not revealed through lipoprotein testing, such as vitamin D deficiency, smoking, high blood pressure, phosopholipase A2, lipoprotein(a), inflammatory factors, thyroid dysfunction, omega-3 fatty acid deficiency, etc.

A heart scan, providing a coronary calcium score, provides an indirect measure of coronary plaque that is the sum total of lipoprotein and other plaque-causing factors that have accumulated up to the time of your scan--regardless of the cause.

It means that two females, each 60 years old, with 70% small LDL, HDL 42 mg/dl, triglycerides 150 mg/dl, and mild hypertension, have identical markers for potential coronary risk, but can have widely different heart scan scores. One might have a score of zero, while the other might have a score of 300.

Why would the same panel of causes measured at one moment yield wildly different quantities of plaque? Several reasons:

1) The lifestyles, eating habits, and weight of each woman differed during their earlier years, not currently reflected in this moment's lipid or lipoprotein patterns. Perhpaps one experienced several years of extraordinary stress from a failed marriage, or suffered through two years of depression that caused her to smoke and overeat.

2) There are hidden factors that affect coronary plaque growth that we are presently not able to detect, e.g., vitamin D receptor genotype, cholesteryl-ester transfer protein variants, variation in inflammatory factors. If we can't measure it, we won't know whether it might influence coronary plaque risk.


With all the changes that occur over a person's life, with the uncertainties of yet-to-be-identified causes for coronary plaque, how can you possible know what your risk for heart disease truly is? Yup--a heart scan. Do it and you will know.

D2 and D3 are two different things

Helena posted this instructive comment in response to the Heart Scan Blog post, Weight loss and vitamin D. It illustrates the confusion common among physicians and pharmacists on the differences between D2 and D3.

(Edited slightly for clarity.)

Not many weeks ago a colleague of mine (let’s call him Eric) asked me if I knew the difference between D2 and D3 and I told Eric that D2 comes from irradiated mushrooms and D3 comes from wool. In other words, D3 is the same kind of vitamin as humans get from the sun. Humans just don’t get enough and we can’t produce it on our own, like the sheep can. (D3 is natural for humans, D2 is not.)

After telling Eric this, he asked me how he would know what he is taking and I gave him the medical definitions of them both (D2 = Ergocalciferol; D3 = Cholecaliciferol). Since I was aware that he had gotten his Vitamin D by prescription, I told him “I am 99.9% sure that you are taking D2, but I would be thrilled to find out I am wrong.”

Eric called his pharmacy right away and got the answer I was expecting: ergocalciferol. On confronting the person Eric was talking to, the answer he got back was that Ergocalciferol is the only Vitamin D they are giving out.

A week later, Eric had a new appointment with his doctor and decided to ask him about the D2/D3 issue. The doctor said he knew that there was a difference in them both, but could not say what, not even the basic facts I mentioned above. But the doctor stamped a post-it with what he had sent to the pharmacy just to show Eric. “Vitamin D3; 50,000IU tab” is what the stamp said.

Eric, off course, got confused and was starting to believe that the pharmacy had made a mistake by giving him Ergocalciferol (D2) since the doctor had given him D3, or at least that is what was stamped on the little note he had.

Today, after getting a refill of his Vitamin D he also got and kept all his paperwork that came along with it. Still believing that stamp the doctor had given Eric earlier, he asked me to double and triple check that my definition of D2 and D3 was correct. I did, just for my own sanity, and I was still right.

One of the sheets Eric brought me today was the “Patient Education Monograph” sheet stating the drugs and how to use it and so on. The thing that jumped out the most to me was this:

Generic Name: Vitamin D – Oral
Common Brand name(s): Drisdol, Maximum D3
Identification: PA140 Green Oval Capsule

This is the Drug Eric was given: Vitamin D 1.25 MG softgel; Generic name: Ergocalciferol

My researching mind went into high concentration mood and I started to dig. And this is what I found:

The brand name Drisdol is Ergocalciferol (D2), not D3. The Brand name Maximum D3 seems to be hard to find out there in cyber space as a brand name. But the ones I found that were called Maximum D3 seems to be the real stuff, however none of them required a prescription.

When trying to find out through the identification number on the pills (PA140) I now know for sure that Eric is taking Vitamin D2 and not the preferred Vitamin D3. The brand name, Drisdol, had the identification W on one side and D92 on the other, but it is still Ergocalciferol.

The only conclusion I can draw from all this is that the medical industry does not know or care about the difference in D2 and D3 – it is all same to them. And as long as the pharmacies only give out D2 it does not matter what the doctor prescribe anyway.

I know that people are most likely to be prescribed a D2 pill than to be told to buy over-the-counter D3. But it was almost heart breaking to see the letter D and number 3 right next to the drug Drisdol, as we know is a D2 vitamin. It just didn’t make sense to me that they can be labeled as the same type of medication, when we know it is not!



Incredible.

Why prescribe plant form D2 when you can get perfectly reliable, safe, effective D3--the human form, at the health food store for about $6?

Once again, it's the peculiar false bias of physicians and pharmacists: If it's prescription, it must be good; if it comes from a health food store, it must be bogus.

Humans need human vitamin D. Plain and simple.

For more on the D2 vs. D3 issue, see the Heart Scan Post, The case against vitamin D2.

Weight loss: Different causes, different solutions

Heart Scan Blog reader, Kris, related this enlightening story of weight loss (slightly edited for clarity).

Kris learned that excess weight is gained through multiple causes. The solutions are therefore multiple, not just one change in diet or two.


I started studying about my thyroid issue much earlier and did lose some weight. But ever since I started following Dr. Davis’s blog, it has given me confidence that I was on the right track. I did have my thyroid and iodine figured out from other sources, but Dr. Davis helped me to understand the issues with not only the thyroid but vitamin D3, fructose, fish oil, niacin, wheat etc. I have lost 43lb in last 14 months.

It seems to me that there are certain percentages of weight connected with different issues. For example, after I gave up alcohol and sugar, I lost about 14lbs from total weight of 243lbs, weight came down to about 229lb. Then it stopped at 229lb, even though I was in the gym almost 5 to 6 days a week with full workouts.

After I changed my thyroid medication to natural thyroid hormones (took synthetic T4 for over 10 years), the weight dropped down further 13lbs or so in matter of few days, shape of the face changed from moon shape/double chin to ordinary long face. Then it kind of stopped at around 213-216 lbs.

After giving up wheat, reducing carbs, increasing protein intake (whey protein, chicken etc. no soya, no fructose) the weight came down another 14lbs. Now it is around 200-202lbs and I am over 6.2 tall with heavy set of bones.

I feel better than I have ever in my life. More stamina, more clarity/no fog, more confidence and 99% of the time relaxed and being able to see the situation from multiple angles.

I use to be able to drink a liter or more jack denial without a problem in one evening but now can’t stand half a can of beer (I miss JD). Drinking alcohol makes me sick. I sleep well and if I wake up in the middle of the night, I have no problem going back to sleep. No more out of breath stair climbing at all.

One other thing: I used to be the most attractive meal to the mosquitoes, but not anymore. This year I haven’t been bitten once. I take my dog to the park everyday and I do not use any mosquito repellent, what a relief. I don’t know if it is because of thyroid, iodine, wheat or something else. Skin texture has changed dramatically. I do not use full soap or shampoo, 20% borax, 10 percent of my soap or shampoo for scent and rest water, mixed in a 500ml bottle. No more dandruff, dry skin, pimples for me.

Dr. Davis I am thankful to people like you who have the ability to see beyond what you have been taught and have the guts to say the way it is. Most of us work to make living on daily basis but some make their living while spreading their knowledge to save lives. Dr Davis you are one of those few people. Please keep it going.

Calling all losers!

I'd like to invite anyone who has followed the Track Your Plaque Break the Weight Barrier program to consider posting their stories and photos on the Heart Scan Blog.

Because our focus is prevention and reversal of coronary heart disease, we have not made an effort to catalog the weight loss experience that people have while on the program. For many, weight loss has been substantial. (Several people this week alone have reported weight loss of 9 to 46 lbs in the past 6 months.)

It would be helpful to hear and see these results.

For those of you who don't mind having a story and photo on this Blog, please come back in future to post your results. You will find this post by entering "weight loss" into the site-specific search bar at the top of the page.

Weight loss and vitamin D

At the start of her program, Penny's 25-hydroxy vitamin D blood level showed the usual deficiency at 22 ng/ml.

She supplemented with 8000 units of vitamin D. Another 25-hydroxy vitamin D blood level several months later showed a level of 67.8 ng/ml, right on target.

But Penny also began our diet, including the elimination of wheat, cornstarch, and sugars, and, over 6 months, lost 34 lbs.

Now a much trimmer 146 lbs (still more to go!), another vitamin D blood level: 111 ng/ml.

Penny's weight loss means that the vitamin D is distributed in a smaller total volume, particularly a lower volume of fat.

This is a common phenomenon with substantial weight loss: lose weight and the need for vitamin D is reduced. The reduction in dose is roughly proportion to the weight lost. Vitamin D should therefore be reassessed with any substantial change in weight of, say, 10 lbs or more, either up or down, because of the influence of fat on vitamin D blood levels.

Some references on this effect:

Men and women over age 65:
Adiposity in relation to vitamin D status and parathyroid hormone levels: a population-based study in older men and women.

Obese women:
Low 25-hydroxyvitamin D concentrations in obese women: their clinical significance and relationship with anthropometric and body composition variables

Obese children:
Hypovitaminosis D in obese children and adolescents: relationship with adiposity, insulin sensitivity, ethnicity, and season.

African-Americans:
Relationship of vitamin D and parathyroid hormone to obesity and body composition in African Americans.

Although the bulk of the effect is most likely due to sequestration by fatty tissue, perhaps less sun exposure in obese people also contributes:
Body mass index determines sunbathing habits: implications on vitamin D levels.
Food sources of vitamin K2

Food sources of vitamin K2



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

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

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

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

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

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











Feta cheese

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

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



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

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

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





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

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

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

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

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


All images courtesy Wikipedia.

Copyright 2007 William Davis, MD

Comments (46) -

  • MAC

    12/28/2007 5:58:00 PM |

    Is not magnesium also a regulator of calcium?

    NIH link on magnesium: http://www.ods.od.nih.gov/factsheets/magnesium.asp
    though they really don't spell out magnesium's role in regulating calcium, just that it "keeps bones strong".

    Dr. Eades blog on magnesium and it's deficiency and role in inflammation: http://www.proteinpower.com/drmike/uncategorized/magnesium-and-inflammation/

    BTW Dr. Davis, Dr. Eades recently posted a comment on your TYP book as the best source regarding CT heart scans.

  • Anonymous

    12/28/2007 7:05:00 PM |

    Fascinating! Perhaps K2 is one factor that contributes to the so-called French paradox. It might make sense to eat imported cheeses produced by traditional methods in European countries that have the lowest rates of CHD -- France, Portugal, Italy, Spain, and Switzerland.

    In addition to vitamin K, many other fat-soluble nutrients (lycopenes, carotenoids, etc.) in plant foods simply aren't absorbed unless accompanied by fat, which, ironically, renders those "healthy" fat free salad spritzes downright hazardous to health.

  • Anonymous

    12/28/2007 7:33:00 PM |

    Great blog, enjoyed reading about vitamin K2.  

    With recent findings on the importance of bone strengthening supplements and drugs for heart health, would weight lifting be helpful at bringing about plaque regression?

  • Carl H

    12/28/2007 8:14:00 PM |

    What about Miso?  Another fermented soy product.  Not bad + not natto.

  • Dr. Davis

    12/28/2007 11:06:00 PM |

    Hi, Mac--

    Yes, magnesium is among the three nutrients that I fuss about for bone and arterial health, along with K2 and D3.

    Thanks for the heads up on Dr. Eades blog. I've only recently stumbled across his Blog and found it wonderful, full of unique and refreshingly candid comments.

  • Dr. Davis

    12/28/2007 11:07:00 PM |

    No, not specifically. K2 improves bone health and possibly arterial health. Weight lifting improves bone health. But that's as far as the intersection goes.

  • Dr. Davis

    12/28/2007 11:08:00 PM |

    I love miso and was raised on it. But to my knowledge it is not a significant source of K2.

  • Cindy Moore

    12/29/2007 8:29:00 AM |

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

    Do you know if there is any evidence that long term (20 yrs+) warfarin use may increase risk?

  • Anonymous

    12/29/2007 8:58:00 AM |

    My research shows that CoQ10 has a structure very similiar to vitamin K.  Perhaps supplementation with CoQ10 may help provide Vitamin K2.

  • Dr. Davis

    12/29/2007 1:21:00 PM |

    Yes. Unfortunately, now several studies have shown that there is greater heart valve and artery calcification with prolonged Coumadin usage. Although the data are very preliminary, there may be benefit to K1 and K2 supplementation, though your doctor's cooperation is required to do this.

  • Harry35

    12/30/2007 1:38:00 AM |

    Here's a list of fermented and unfermented cheeses that I compiled by googling around. Not sure how to tell which of the fermented cheeses have the most K2, though.

    Fermented:

    Aged goat cheese
    Bleu Cheese
    Brie
    Cambozola
    Camebert
    Cantal
    Cheddar
    Cheshire
    Cultured dry cottage cheese
    Edam
    Emmenthal
    Feta
    Gorgonzola
    Gouda
    Gruyere
    Muenster
    Parmesan
    Port du Salut
    Roquefort
    Romano
    Stilton

    Unfermented

    Farmer cheese
    Mescarpone
    Most cottage cheese
    Mozzarella
    Pot cheese
    Processed cheese
    Provolone
    Provatura
    Quark
    Ricotta
    Scamorza

  • Dr. Davis

    12/30/2007 2:07:00 PM |

    Wow! Thanks, Harry.

    I didn't realize that provolone and ricotta were unfermented.

  • chickadeenorth

    12/30/2007 4:37:00 PM |

    Wow great info and timely article...thnx.
    I eat those fermented cheeses that  and have eggs, I use only olive oil though. I read somewhere that any oil that gets sticky on outside of the jug gets sticky inside the body and since canola is one of those I quit using it, wish I could find that article, ( Eades maybe?)what do you folks think.
    So having some oil on veg and salad is great, I don't use those low fat or spritz things are they seem too processed and full of chemicals.

    Thnx Dr D for the excellent info as always.

    So do you eat those slimy soybeans, are they pretty icky or do you think a person could get used to them. Lots of my Japanese guests ( from Japan not North America) bring some of their own food and I have seen these before. Looks kind of like eatin the foods off Fear Factor....j/k.

  • MAC

    12/30/2007 4:48:00 PM |

    Seem to remember reading somewhere recently that if the cheese has the word "culture" in the ingredient list then it is a fermented product. This could mean yogurt and kefir may have K2. Web sources seem to indicate this but didn't find any I consider reliable.

  • Dr. Davis

    12/30/2007 10:54:00 PM |

    I don't think that there's anything wrong with actually eating natto. It's just that it is quite difficult to stomach. I had it several times as a kid and found it thoroughly unappetizing, despite having tried some really exotic stuff like raw octopus and seaweed. Natto was the one thing I simply could not eat.

    The stick oil thing has me stumped. Our bodies digest foods like oil before they make it into the blood stream. Why its behavior in a bottle would have any bearing on its behavior in the body is beyond me.

  • Cindy Moore

    12/31/2007 12:08:00 AM |

    Mary Enig is an excellent source of information about oils. Her general belief is that processed oils (like corn, cannola and soy) are heat treated during the processing and this heat damages the fat molecules, so these fats are essentially spoiled when they are bottled. These oils are also polyunsaturates, which are the least stable of oils, so they should be stored properly and protected from heat, light, etc. (Flax and fish oils are "good" polys, but care should be used to keep these fresh and prevent oxidation)

    I only use virgin olive oil, virgin cocount oil and butter, and I rarely (if ever) use olive for cooking. (I want to try the nut oils, but haven't given them a shot yet).

  • chickadeenorth

    12/31/2007 8:20:00 AM |

    Cindy why don't you use olive oil to cook in at low heat,curious, I thought that was ok if it didnt get too hot. I just got some walnut and almond oil and have to try them.I also use coconut oil to cook in and grapeseed for salads.

    I cannot get vit k 2 in Ca and have a friend going to Florida in 2 days who will buy me some, what is a good name brand and dose,  also a good name brand and dose for DHEA thanks for feedback.

  • Cindy Moore

    12/31/2007 5:51:00 PM |

    chickadeenorth, I don't often us olive in cooking because I've read (Enig I believe) that if it smokes it shouldn't be eaten....and I've had too many instances of the heat getting ahead of me and the oil ending up burned. I just find it easier to use coconut....and then I add butter and/or olive oil at the end to give it flavor, if needed. Mostly I just use the coconut oil.

    I use Source Naturals K, but am also interested in hearing some recommendations. I bought this because I'm told Source Naturals is a good company.

  • Dr. Davis

    12/31/2007 6:10:00 PM |

    We've used Source Naturals, Life Extension, and Jarrow. All seem like the real thing.

  • chickadeenorth

    12/31/2007 8:40:00 PM |

    ..thnx...is this in dry tablet form, what dose of tablet should I get her to pick up, what about DHEA?? name brand and dose.

    Ya I cook with natural gas so keep flame very low and don't over heat anything,I don't use allot as have good pots, maybe should use coconut more often, its adds a nice flavor especially to chicken and pork.

    I think some guests from Japan bought some of those soybeans once in a can, is that how they come, they ate something that looked familiar to your picture.

  • g

    1/1/2008 6:35:00 AM |

    Apparently the ADA have new guidelines coming soon!  AND guess what they advise now!  LOW CARB diets!!

    This is funny...
    http://thefitnessinsider.menshealth.com/2007/12/apparently-hell.html

  • chickadeenorth

    1/1/2008 5:13:00 PM |

    Hmm wonder what pushed their buttons, the powers at be in USA are also supposedly going to recommend a higher dose of Vit D too.
    http://articles.mercola.com/sites/articles/archive/2008/1/1/experts-starting-to-agree-more-vitamin-d-is-better.aspx

  • brassman

    1/1/2008 6:04:00 PM |

    Vitamin K is fat soluble. Will a tablet be absorbed well or do I need a soft gel as with vitamin d?

  • chickadeenorth

    1/1/2008 9:06:00 PM |

    Is this the right DHEA I am looking for, if so I found a source in Canada but still no Vit k 2.Sorry I can't log onto the forum.Smile

    http://www.nutrichem.com/Phosphatidyl-Serine-Complex-23.html

  • Dr. Davis

    1/2/2008 12:10:00 PM |

    The label and info says phosphatidylserine, not DHEA.

  • Dr. Davis

    1/2/2008 12:11:00 PM |

    The data would suggest that, unlike vitamin D, even tablets of K2 are well absorbed.

  • Anonymous

    1/31/2008 1:02:00 AM |

    Hello Dr. Davis,
    Thank you for this great post. We've recently learned that K2 was probably what Weston Price had  called Activator-X, since he had not been in contact with other researchers who were learning about vitamin K at the time.

    Anyway, I can help with the "sticky oil" comment. Oils that oxidize easily become sticky (basically like varnish drying) when exposed to oxygen. This means that canola oil and other less-saturated fatty acids can oxidize (producing free radicals) in the bottle (and MAYBE in the blood - there is oxygen in the blood, but I'm not an expert in blood chemistry). We don't know how long the oil was exposed to air before it was bottled. X-virgin olive oil, on the other hand, has a lot of anti-oxidants built in (and numerous phyto-nutrients), so probably has a longer shelf life. Most Canola oil is a highly processed modern hybrid. The Mediterranean people never lived on Canola oil. The fact that both are monounsaturated is largely irrelevant.  -David

  • Dr. Davis

    1/31/2008 1:33:00 PM |

    Thanks for the help, David.

  • donny

    7/1/2008 6:23:00 PM |

    I hate to comment on an article this old, but I've been reading a lot of stuff online about vitamin k lately. I found this article recently. Really, it looks like an attempt to denigrate food sources of vitamin k in comparison to supplementation.
    First they compared spinach consumption to a vitamin k supplement called konakion, and showed that konakion raised serum levels of k1 maybe seven to eight times as much as 227 grams of boiled spinach with butter. Then, they did a bait and switch, comparing the spinach and butter to a milligram of k2 mixed with 5 grams of butter, and they have a chart with that showing that the k2 with butter raised serum levels of k2 twice as much as the spinach with twenty five grams of butter.
    I'm just wondering if green vegetables, with butter, might be a good way to raise k2 levels after all?

    http://journals.cambridge.org/download.php?file=%2FBJN%2FBJN76_02%2FS0007114596001304a.pdf&code=2e2d0ca6a4129581d36eebf438633b36

  • Anonymous

    12/2/2008 3:05:00 PM |

    "Why would humans have developed a need for a nutrient that is created through fermentation with only small quantities in meats and other non-fermented foods?"

    Perhaps this is an example of how our "sterile" environment is killing us.  Before refrigeration, I am sure humans were subject to much more fermented food.

  • Dane Miller

    4/20/2009 5:58:00 PM |

    I , too hate commenting on an article so old.  Great stuff but canola as a healthy oil?  I think not.  Canola is terrible for you.  Or should I said rapeseed oil.

  • jpatti

    5/25/2009 1:05:39 AM |

    I understand there's a good bit of K2 in unpasteurized milk.  Apparently, grass-fed animals do produce a lot of A, D and K2, but much is destroyed through pasteurization.

    I've recently added raw milk to my diet.  Decided it was worth taking extra insulin for the health benefits.  Can't get raw butter or cream in my state, but am getting it from the same dairy, so it's grass-fed if not raw.

    My bp has dropped about 30/30 without the Lisinopril I was on before.  As hubby says, if it's placebo, it's one worth sticking to.  ;)

    Besides raw milk, I've also about tripled my intake of butter and eggs.  

    And btw, fermenting raw milk yourself is wicked easy.  Take a quart of milk, heat it to around 100-110 degrees (I do this with a quart jar in my crockpot in an inch of water with the lid off).  Remove about a half cup of warmed milk and stir in about 1/4 cup yogurt.  Pour this back into the main container, turn off the crockpot (so it doesn't overheat and kill the culture), and cover with a blanket or such to insulate it.  

    I do this while fixing dinner, in the morning I have yogurt - fermented raw milk, yummy stuff, chockful of K2.  It's not thick like store-bought, more like a drink.  I add blueberries to it most often.

    The point is, with a source of raw milk it takes about 5-10 minutes of "work" to make your own fermented dairy.  You need a quart sized jar, a source of heat, a thermometer, some insulation and some culture (store-bought plain yogurt works fine) - fermented dairy just happens overnight.

  • robbyn

    9/27/2009 9:44:19 AM |

    I know that sauerkraut contains vit k2, but do not know how much per 100g. Has anyone been able to find the figures?

  • Anonymous

    1/5/2010 5:13:32 PM |

    Dear Dr. Davis
    Hello
    Is there a special food diet for patients with aortic valve calcification. How many milligrams
    of vitamin CaLaughing:K2:K:Mg, are recommended for patients.
    Thanks
    Lev

  • Sharon

    2/17/2010 6:56:22 AM |

    Serious question Dr.Davis:    Fibrinogen can create calcification, K2 reduces calcification, natto reduces fibrinogen but is there any clottin risk and conflict in using both agents for a patient with the two dysfunctions?

    Thank you Sharon

  • Anonymous

    3/15/2010 8:46:14 PM |

    Recently had a CT.  After the CT, got up off table and had no pain for 2 weeks.  In constant pain due to significant cervical and lumbar radiculopathy, fibromyalgia, osteoarthritis, etc.  Has anyone ever had a CT with contrast who was in pain and pain gone after the contrast CT?  My doctor told me to blog to see if could find others who drank a liquid and had an IV during the CT.  Was wonderful to have no pain for 2 weeks, and interesting it happened immediately upon rising from the table where the CT was performed.  Anyone exeriencing this, please blog

  • ea

    3/25/2010 1:35:56 AM |

    In http://www.westonaprice.org/On-the-Trail-of-the-Elusive-X-Factor-A-Sixty-Two-Year-Old-Mystery-Finally-Solved.html it says:
    Since the amount of vitamin K1 in typical diets is ten times greater than that of vitamin K2, researchers have tended to dismiss the contribution of K2 to nutritional status as insignificant. Yet over the last few years, a growing body of research is demonstrating that these two substances are not simply different forms of the same vitamin, but are better seen as two different vitamins: whereas K1 is preferentially used by the liver to activate blood clotting proteins, K2 is preferentially used by the other tissues to place calcium where it belongs, in the bones and teeth, and keep it out of where it does not belong, in the soft tissues.
    In other words, to properly use the Calcium in your diet, you need vitamin K2 (as well as A & D) ~ and, since K2 is fat soluble, also fat so that you can absorb the K2.  With K2 the Calcium will be used to strengthen bones and teeth. Without K2 the Calcium will be deposited in joints leading to osteoarthritis, in blood vessels leading to heart attacks and strokes, in eyes leading to cataracts, and in other soft tissues.

    In http://www.westonaprice.org/On-the-Trail-of-the-Elusive-X-Factor-A-Sixty-Two-Year-Old-Mystery-Finally-Solved.html there is also a table of K2 content of various foods.

  • bed frame

    7/6/2010 7:09:17 AM |

    Before I don't know what is vitamin K2 is. But after reading and analyzing your post. Now I know that it is important. I thank you for sharing this very helpful post.

  • Yogi Sinzapatos

    7/29/2010 3:50:33 PM |

    Mixing jpatti's home made raw milk yogurt with flaxseed oil = Dr. Johanna Budwig's cure for cancer (and many other diseases).

  • dermatology laser

    9/30/2010 3:23:32 AM |

    Vitamin K2 might be, for instance more relevant in the form of a supplement or in low-fat dairy.

  • Chuck

    10/21/2010 3:38:37 AM |

    As far as Warfarin blocking the absorption of vitamin K, I am not a big fan of people taking rat poison. Warfarin is the active ingredient in rat poison.

    It is worse than the urine of a pregnant horse. Premarin-- pregnant mare urine. I am American and natto does not taste that bad. Of course it is better to add it to something else. For example no one eats sugar by itself.

    Now raw garlic by itself is painful to eat. But I add it to other foods and it is OK. Raw ginger by itself is also painful to eat.

  • buy jeans

    11/3/2010 4:53:24 PM |

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

  • Heidi

    11/11/2010 5:34:36 PM |

    Earlier in the thread there was mention made on canola oil. Here's a link that explains the dangers:
    http://www.westonaprice.org/know-your-fats/559-the-great-con-ola.html

  • Jack C

    11/18/2010 3:03:20 AM |

    Somewhere in my files there is a study, from Japan I believe, that found that serum concentrations of MK4 increased after consumption of natto, which contains no MK4. It therefore appears that MK7, 8 and 9 will convert, to some degree, to MK4. Conclusion (mine): Aged cheese can provide all of the vitamin K2 needed. Aged raw milk cheese has most of the benefits of raw milk but is as pathogen free as pasteurized milk due to destruction of pathogens by low pH during aging.  

    While I can not quickly lay my hands on that study, I have found a couple of other related studies of interest.

    Vitamin K is required for activation of osteocalcin. Vitamin K deficiency is associated with low bone mineral density due to increased levels of uncarboxylated (unactivated) osteocalcin(ucOC). The plasma vitamin K2 concentrations required to minimize ucOC increases with age (PMID 16469998). Conclusion: (mine) Eat more aged raw milk cheese as you age to protect you bones.

    Rats readily convert vitamin K1 to K2 but humans do not.

    "Vascular calcification may be species specific to humans. As laboratory animals, such as the rat, grow old, they suffer from only mild arterial calcification" (PMID 18772323): Conclusion (mine): K2 is the answer: Eat more raw milk aged cheese as you get older to prevent calcification of arteries.

    Jack C.

  • Gillian

    1/17/2011 5:13:44 PM |

    Hi, Dr Davis
    I´ve read in some earlier comment of yours, that natto is not really a reliable source for K2, is that so and if, then why?
    I also wonder why I sometimes feel pain in my legs when eating cream.
    I have seen the famous photographer from Sweden that have filmed arteries and showed that cream supposedly block the arteries..
    What is your opinion??

  • Lobster bake

    2/18/2011 9:17:08 AM |

    Thanks, very well written post, found it through a random Google search and I shared it on my Facebook. This Vitamin K foods are very helpful to keep our body healthy and young.

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