Wheat-free pumpkin bread

25. December 2010 William Davis (5)
Try this recipe for a wheat-free, gluten-free yet healthy "bread." Unlike many gluten-free foods that send blood sugar skyward, this will not.

Ingredients:
2 cups ground almond meal (Buy it from Trader Joe's--70% cheaper than other grocery stores.)
1/2 cup ground flaxseed
1/2 cup sour cream (full-fat, of course)
15 oz canned pumpkin (Trader Joe's is bisphenol A-free)
2 medium to large eggs
1/2 cup chopped walnuts or pecans
4 tablespoons butter, melted
2 teaspoons baking powder
2 teaspoons cinnamon
1 teaspoon nutmeg or allspice
Dash of salt
Choice of non-nutritive sweetener (I used 3 teaspoons Trader Joe's stevia extract powder, the one mixed with lactose. Two tablespoons of Truvia, 1/2 teaspoon of the more concentrated stevia extract, or 1/2 cup Splenda are other choices. You can taste the mixed batter to gauge sweetness if in doubt.)

Preheat oven to 350 degrees F. Grease baking pan (e.g., 10 x 6 inch). The pan should be big enough so that the mix will not be more than 2 inches deep, else it will require much longer to bake. (If you have only smaller pans, you will need to cook longer while the pan is covered with aluminum foil.)

Mix all ingredients thoroughly in large bowl. Pour mix into greased baking pan.

Cover with aluminum foil and bake for 30 minutes. Remove foil and bake for additional 30 minutes or until inserted toothpick or knife comes out dry.

Serve with cream cheese or as is.

(I'd have some pictures, but the kids and I ate it up before I thought to take any photographs.)

Vitamin D: Deficiency vs optimum level

19. December 2010 William Davis (20)
Dr. James Dowd of the Vitamin D Cure posted his insightful comments regarding the Institute of Medicine's inane evaluation of vitamin D.

Dr. Dowd hits a bullseye with this remark:

The IOM is focusing on deficiency when it should be focusing on optimal health values for vitamin D. The scientific community continues to argue about the lower limit of normal when we now have definitive pathologic data showing that an optimal vitamin D level is at or above 30 ng/mL. Moreover, if no credible toxicity has been reported for vitamin D levels below 200 ng/mL, why are we obsessing over whether our vitamin D level should be 20 ng/mL or 30 ng/mL?

Yes, indeed. Have no doubts: Vitamin D deficiency is among the greatest public health problems of our age; correction of vitamin D (using the human form of vitamin D, i.e., D3 or cholecalciferol, not the invertebrate or plant form, D2 or ergocalciferol) is among the most powerful health solutions.

I have seen everything from relief from winter "blues," to reversal of arthritis, to stopping the progression of aortic valve disease, to partial reversal of dementia by achieving 25-hydroxy vitamin D levels of 50 ng/ml or greater. (I aim for 60-70 ng/ml.)

The IOM's definition of vitamin D adequacy rests on what level of 25-hydroxy vitamin D reverses hyperparathyroidism (high PTH levels) and rickets. Surely there is more to health than that.

Dr. Dowd and vocal vitamin D advocate, Dr. John Cannell, continue to champion the vitamin D cause that, like many health issues, conradicts the "wisdom" of official organizations like the IOM.

Large LDL counts, too

15. December 2010 William Davis (0)
Chad is a 43-year old father of five kids.

Earlier this year, he developed chest pain that got worse and worse. He ended up with a total of five stents in all three coronary arteries. After a devastating experience with Lipitor that resulted from a ruptured tendon, he came to me for an option.

Chad's lipoproteins:

Slow Burn works

14. December 2010 William Davis (55)
I have been impressed with the results I've been obtaining with Fred Hahn's Slow Burn strength training technique.

Because I have limited time to hang around the gym, any technique that provides outsized results in a limited amount of time, I have to admit, appeals to me. In past, I'd be lucky to squeeze in one or two strength training sessions per week, devoting the rest of the time to biking outdoors, biking on a sedentary bike (while playing XBox), jogging, or doing strenuous yard work like digging trenches and planting shrubs.

Over the years, I've gradually lost muscle, since the strength training effort suffered with my time limitations.

So Fred's time-efficient Slow Burn idea struck a chord. Having now done it with some regularity, usually 1-2 times per week since mid-September, I have gradually added back visible muscle. My Slow Burn workouts, involving 8-10 different movements, seem to have restored the muscle I've lost, with a very modest time effort.

It took a little getting used to. After Fred showed me how to do the movements--slow motion movement in both the "positive" and "negative" directions, with smooth, non-jerking transitions, one set per muscle group, each taken to muscle exhaustion--it left me unusually tired and sore the next day. This surprised me, given the limited time involved. Breathing is also very important; the usual exhale-during-the-positive, inhale-during-the-negative pattern is replaced by breathing freely during the entire set. I didn't get this at first and ended up with headaches that got worse with each set. Breathing freely relieved me from the effect.

I have strength trained since I was around 15 years old. Back in the early 1970s, I had about 2000 lbs of barbells and dumbbells in my garage in New Jersey, while also driving back and forth to the Morristown, NJ, YMCA to train with friends. The Slow Burn movements forced me to break habits established over nearly 40 years of conventional strength training.

I've also played around with mixing conventional movements with Slow Burn movements to keep it fresh. This also seems to work.

If you're interested in giving it a try, here's an animation that demonstrates what Slow Burn movements look like. Fred has also produced an excellent 3-DVD set of videos that more fully describe the practice.

Do your part to save on healthcare costs

13. December 2010 William Davis (37)
While many of the factors that drive the relentless increase in health care costs are beyond individual control, you are still able to exert personal influence over costs. Just as in political elections, your one vote alone may not count; it's the collective effort of many people who share similar opinions that results in real change.

I just got the new monthly premium for my high-deductible health insurance: Up $300 per month, putting my family's total premium over $2000 per month---for four healthy people. (My son fractured his wrist playing high school hockey earlier this year; that may explain at least some of the increase.)

I'm going to shop around for a better deal. However, shopping is likely to only stall the process. It will not address the systemic problems with healthcare that continue to drive premiums up and up and up.

So what can you do to help keep costs down? Here are a few thoughts:

Never accept a prescription for fish oil, i.e., Lovaza. Just buy far less costly over-the-counter fish oil. I treat complex hyperlipidemias, including familial hypertriglyceridemia, ever day. I NEVER use prescription fish oil. A typical 4 capsule per day Lovaza prescription adds around $280 to $520 per month to overall health costs (though your direct out-of-pocket costs may be less, since you shove the costs onto others in your plan).

Never accept a prescription for vitamin D. Prescription vitamin D is the mushroom or invertebrate form anyway. Just buy the human (cholecalciferol, D3) form from your health food store or "big box" store. They yield consistent increases in 25-hydroxy vitamin D levels, superior to the prescription form. And they're wonderfully inexpensive.

Eliminate wheat from your diet. If there is a dietary strategy that yields unexpected and outsized benefits across a wide spectrum of health, it's elimination of this thing we're sold called "wheat," you know, the genetically-transformed, high-yield dwarf mutant that now represents 99% of all wheat sold. Blood sugar drops, pre-diabetics become non-prediabetics, diabetics reduce need for medication or become non-diabetic, cholesterol values plummet, arthritis improves, acid reflux and irritable bowel symptoms improve or disappear, just to mention a few. Wheat elimination alone, I believe, would result in incalculable savings in both healthcare costs and lives saved.

Be sure to obtain iodine. In the fuss to cut salt use, everyone forgot about iodine. Lack of iodine leads to thyroid disease, usually hypothyroidism, that, in turn, causes cholesterol values to increase, weight to increase, and heart disease risk to double, triple, or quadruple. Iodine supplementation is easy and wonderfully inexpensive.

Over time, I hope that all of us can help develop the effort to self-direct more and more of our own health. Our Track Your Plaque program has shown me that, not only can people take the initiative to direct aspects of their own health, they can do it better than 99% of doctors.  

I'm sure there are many, many other ways to help reduce costs. Any suggestions?

Fish oil: What's the difference?

10. December 2010 William Davis (27)
Ultra-purified, pharmaceutical grade, molecularly distilled. Over-the-counter vs. prescription. Gelcap, liquid, emulsion.

There's a mind-boggling variety of choices in fish oil today. A visit to any health food store, or any "big box" store for that matter, will yield at least several, if not dozens, of choices, all with varying and often extravagant claims of purity and potency.

So what's the real story?

Given the analyses conducted over the years, along with my experience with dozens of different preparations, I believe that several conclusions can be reached about fish oil:

Fish oil is free of contamination with mercury, dioxin, PCBs, or furans. To my knowledge, only one fish oil preparation has been found to have a slight excess of PCBs. (This is different from cod liver oil that has been found by one source to have a slight excess of PCBs.)

Oxidative breakdown products differ among the various brands. Consumer Lab (http://www.consumerlab.org/), for instance, has found that several widely available brands of fish oil contained excessive oxidative breakdown products (TOTOX). You can perform you own simple test of oxidative breakdown products: Sniff it. Your fish oil should pass the "sniff test." High quality fish oil should smell non-fishy to lightly fishy. Rancid fish oil with excessive quantities of oxidative breakdown products will smell nasty fishy.

FDA approval does not necessarily mean greater potency, purity, or effectiveness. It just means that somebody assembled the hundreds of millions of dollars to obtain FDA approval, followed by lots of marketing savvy to squash the competition.

This means that there are a number of excellent fish oil products available. My favorites are the liquid fish oils from Pharmax, Nordic Naturals, and Barleans. Capsules from Carlson, PharmaNutrients, and Fisol have also performed consistently. The "big box" capsules from Sam's Club and Costco have also performed well and are wonderfully affordable.

Wheat-free pie crust

9. December 2010 William Davis (17)
I've been working on wheat-free yet healthy recipes these past two months.

You can buy wheat-free, gluten-free foods at the store, of course. But the majority of these products are unhealthy because cornstarch, rice starch, potato starch, or tapioca starch are commonly used in place of wheat. Recall that these are among the few foods that increase blood glucose higher than even wheat.

Here's a simple recipe for wheat-free pie crust that works best for cheesecake, pumpkin pie, and cream pies, but not for berry or other fruit pies like apple.

You will need:
?
1½ cups ground pecans
6 tablespoons melted butter?or melted coconut oil
1 teaspoon vanilla extract?
2 teaspoons cinnamon
1 medium egg
2 tablespoons Truvia™ or ½ teaspoon stevia extract or ½ cup Splenda®

Mix all ingredients thoroughly in bowl. Pour mixture into pie pan and press onto bottom and sides.

Fill pie crust with desired filling. You can fill it with your favorite cheesecake recipe (e.g., Neufchatel or cream cheese, sour cream, eggs, vanilla, and stevia; add pumpkin for pumpkin cheesecake) and bake, usually at 350 degrees F for one hour. 

Yes, the butter provokes insulin and artificial sweeteners can trigger appetite. But, for the holidays, a slice or two of pie made with this crust will not increase blood sugar nor trigger the uncontrolled impulse eating that wheat crust will trigger.

Have a cookie

9. December 2010 William Davis (0)
Here's a great insight dating all the way back to 1966 from one of the early explorations in lipoproteins from the National Institutes of Health lab of Levy, Lees, and Fredrickson:

The nature of pre-beta (very low density) lipoproteins

The subject is a 19 year old female (among the total of 11 in the this small, diet-controlled study) who was first fed a low-carbohydrate (50 grams per day), low-cholesterol diet; followed by a high-carbohydrate (500 grams per day), low-fat (5 grams per day) diet.






To B or not to B

5. December 2010 William Davis (11)
Apoprotein B (apo B) is the principle protein that resides in LDL particles along with other proteins, phospholipids, triglycerides, and, of course, cholesterol.

There's a curious thing about apo B. Just like one child per family in China or one television per household in 1950s America, there is only one apo B for every LDL particle.

So measuring apo B, in effect, provides a virtual count of LDL particles. (Actually, VLDL particles, the first lipoprotein to emerge from the liver, also have one apo B per particle but LDL particles far outnumber VLDL particles.) While apo B structure can show limited structural variation from individual to individual, the effect on measured apo B is negligible.

One apo B per LDL particle . . . no more, no less. What about the other components of LDL particles?

The other components of LDL particles are a different story. Cholesterol and triglycerides in LDL particles vary substantially. Diet has profound effects on cholesterol and triglyceride content of LDL particles. A diet rich in carbohydrates, for instance, increases triglycerides in LDL particles while reducing cholesterol. This means that measuring cholesterol in the LDL fraction will be misleading, since cholesterol will be falsely low. LDL cholesterol is therefore a flawed means to assess the behavior and composition of LDL particles. In particular, when LDL particles become enriched in triglycerides, they go through a process that transforms them into small LDL particles, the variety most likely to cause atherosclerosis.

In other words, when the worst situation of all--an abnormal abundance of small LDL particles develops--it is usually not signalled by high LDL cholesterol.

Because apo B is not sensitive to the composition of LDL particles--high cholesterol, low cholesterol, high triglycerides, etc.--it is a superior method to characterize LDL particles. While apo B doesn't tell you whether LDL particles are big, small, or in between, it provides a count of particles that is far more helpful than measuring this deeply flawed thing called "LDL cholesterol."

(Even better: Count LDL particles and measure LDL size, since size gives us insight into sensitivity to oxidation, glycation, adhesiveness, ability to trigger inflammatory pathways via monocyte chemoattractant protein, various interleukins, tunor necrosis factor and others. This is why cholesterol panels should go the way of tie dye shirts and 8-track tapes: They are hopelessly, miserably, and irretrievably inaccurate. Cholesterol panels should be replaced by either apoprotein B or lipoprotein measures.)
All posts by william-davis

Heart Scan Blog Redux: Cheers to flavonoids

13. November 2009 William Davis (32)
Because in Track Your Plaque we've been thinking a lot about anthocyanins, here's a rerun of a previous Heart Scan Blog post about red wine. (Anthocyanins are among the interesting flavonoids in red wine, along with resveratrol and quercetin.)


The case in favor of healthful flavonoids seems to grow bit by bit.

Flavonoids such as procyanadins in wine and chocolate, catechins in tea, and those in walnuts, pomegranates, and pycnogenol (pine bark extract) are suspected to block oxidation of LDL (preventing its entry into plaque), normalize abnormal endothelial constriction, and yield platelet-blocking effects (preventing blood clots).

Dr. Roger Corder is a prolific author of many scientific papers detailing his research into the flavonoids of foods, but wine in particular. He summarizes his findings in a recent book, The Red Wine Diet. Contrary to the obvious vying-for-prime-time title, Dr. Corder's compilation is probably the best mainstream discussion of flavonoids in foods and wines that I've come across. Although it would have been more entertaining if peppered with more wit and humans interest, given the topic, its straightfoward, semi-academic telling of the story makes his points effectively.

Among the important observations Corder makes is that regions of the world with the greatest longevity also correspond to regions with the highest procyanidin flavonoids in their wines.




Regarding the variable flavonoid content of wines, he states:

Although differences in the amount of procyanidins in red wine clearly occur because of the grape variety and the vineyard environment, the winemaker holds the key to what ends up in the bottle. The most important aspect of the winemaking process for ensuring high procyanidins in red wines is the contact time between the liquid and the grape seeds during fermentation when the alcohol concentration reaches about 6 percent. Depending on the fermentation temperature, it may be two to three days or more before this extraction process starts. Grape skins float and seeds sink, so the number of times they are pushed down and stirred into the fermenting wine also increases extraction of procyanidins. Even so, extraction is a slow process and, after fermentation is complete, many red wines are left to macerate with their seeds and skins for days or even weeks in order to extract all the color, flavor, and tannins. Wines that have a contact time of less than seven days will have a relatively low level of procyanidins. Wines with a contact time of ten to fourteen days have decent levels, and those with contact times of three weeks or more have the highest.

He points out that deeply-colored reds are more likely to be richer in procyanidins; mass-produced wines that are usually "house-grade" served at bars and restaurants tend to be low. Some are close to zero.

Wines rich in procyanidins provide several-fold more, such that a single glass can provide the same purported health benefit as several glasses of a procyanidin-poor wine.

So how do various wines stack up in procyanidin content? Here's an abbreviated list from his book:

Australian--tend to be low, except for Australian Cabernet Sauvignon which is moderate.

Chile--only Cabernet Sauvignon stands out, then only moderate in content.

France--Where to start? The French, of course, are the perennial masters of wine, and prolonged contact with skins and seeds is usually taken for granted in many varieties of wine. Each wine region (French wines are generally designated by region, not by variety of grape) can also vary widely in flavonoid content. Nonetheless, Bordeaux rate moderately; Burgundy low to moderate (except the village of Pommard); Languedoc-Roussillon moderate to high (and many great bargains in my experience, since these producers live in the shadow of its northern Bordeaux neighbors); Rhone (Cote du Rhone) moderate to high, though beware of their powerful "barnyard" character upon opening; decanting is wise.

Italy--Much red Italian wine is made from the Sangiovese grape and called variously Chianti, Valpolicella, and "super-Tuscan" when blended with other varietals. Corder rates the southern Italian wines from Sicily, Sardinia, and the mainland as high in procyanidins; most northern varieties are moderate.

Spain--Moderate in general.

United States--Though his comments are disappointingly scanty on the U.S., he points out that Cabernet Sauvignon is the standout for procyanidin content. He mentions only the Napa/Sonoma regions, unfortunately. (I'd like to know how the San Diego-Temecula and Virginian wines fare, for instance.)

The winner in procyanidin content is a variety grown in the Gers region of southwest France, a region with superior longevity of its residents. The wines here are made with the tannat grape within the Madiran appellation; wines labeled "Madiran" must contain 40% or more tannat to be so labeled (such is a quirk of French wine regulation). Among the producers Dr. Corder lists are Chateau de Sabazan, Chateau Saint-Go, Chateau du Bascou, Domaine Labranche Laffont, and Chateau d'Aydie. (A more complete list can be found in his book.)

How does this all figure into the Track Your Plaque program? Can you succeed without red wine? Of course you can. I doubt you could do it, however, without some attention to flavonoid-rich food sources, whether they come from spinach, tea, chocolate, beets, pomegranates, or red wine.

Though my wife and I love wine, I confess that I've never personally drank or even seen a French Madiran wine. Any wine afficionados with some advice?

Can wheat elimination cure ulcerative colitis?

13. November 2009 William Davis (0)
Tammy is a 36-year old mother of three young children. Since age 20, she has suffered with the debilitating symptoms of ulcerative colitis: constant, gnawing abdominal pain; frequent diarrhea, often bloody.



Tammy has had to take several medications, some with significant side-effects, all of which provided only partial relief from the pain and diarrhea. Her gastroenterologist and surgeon were planning a colectomy (removal of the colon) with creation of an ileostomy (rerouting of the small intestine to the abdominal surface, which would require Tammy to wear an ileostomy bag under her clothes for the rest of her life).



Although Tammy had previously tested negative for celiac disease (an allergic sensitivity to the gluten in wheat products), I urged her to attempt a trial of a wheat-free diet. Having witnessed many people experience relief from irritable bowel syndrome, acid reflux, and other common gastrointestinal complaints, all while trying to reduce blood sugar and small LDL, I'd hoped that Tammy would obtain at least some small improvement in her terrible symptoms.



I therefore urged Tammy to try it. After all, what was there to lose? Tammy grudgingly agreed.



She returned 6 months later. Her report: She had lost 38 lbs, virtually all of it within the first 6-8 weeks. Her diarrhea and cramping were not better, but gone. She was down to a single medicine from her former list of drugs.



I am unsure what proportion of people with ulcerative colitis or other inflammatory bowel diseases like Crohn's will experience a result like Tammy's. Perhaps it's only a minority. But I take this another piece of evidence that this enormously destructive thing called wheat has no place in the human diet.



We have no facts or figures on the prevalence of various forms of wheat intolerance in the U.S. When I contacted the Celiac Disease Foundation, they had no figures on the number of fatalities per year in the U.S. from celiac disease. But if there are 2-3 million Americans with celiac disease, there are probably 100 times that many people with various forms of wheat intolerance.



Postprandial pile-up with fructose

12. November 2009 William Davis (20)
Heart disease is likely caused in the after-eating, postprandial period. That's why the practice of grazing, eating many small meals throughout the day, can potentially increase heart disease risk. Eating often can lead to the phenomenon I call triglyceride and chylomicron "stacking," or the piling up of postprandial breakdown products in the blood stream.

Different fatty acid fractions generate different postprandial patterns. But so do different sugars. Fructose, in particular, is an especially potent agent that magnifies the postprandial patterns. (See Goodbye, fructose.)

Take a look at the graphs from the exhaustive University of California study by Stanhope et al, 2009:



From Stanhope KL et al, J Clin Invest 2009. Click on image to make larger.

The left graphs show the triglyceride effects of adding glucose-sweetened drinks (not sucrose) to the study participants' diets. The right graphs show the triglyceride effects of adding fructose-sweetened drinks.

Note that fructose causes enormous "stacking" of triglycerides, meaning that postprandial chylomicrons and VLDL particles are accumulating. (This study also showed a 4-fold greater increase in abdominal fat and 45% increase in small LDL particles with fructose.)

It means that low-fat salad dressings, sodas, ketchup, spaghetti sauce, and all the other foods made with high-fructose corn syrup not only make you fat, but also magnifies the severity of postprandial lipoprotein stacking, a phenomenon that leads to more atherosclerotic plaque.

Track Your Plaque: Safer at any score

11. November 2009 William Davis (0)
Imagine two people.

Tom is a 50-year old man. Tom's initial heart scan score was 500--a concerning score that carries a 5% risk for heart attack per year.

Harry is also 50 years old. His heart scan score is 100--also a concerning score, but not to the same degree as Tom's much higher score.

Tom follows the Track Your Plaque program. He achieves the 60:60:60 lipid targets; chooses healthy foods, including elimination of wheat; takes fish oil at a therapeutic dose; increase his blood vitamin D level to 60-70 ng/ml, etc. One year later, Tom's heart scan score is 400, representing a 20% reduction from his starting score.

Harry, on the other hand, doesn't understand the implications of his score. Neither does his doctor. He's casually provided a prescription for a cholesterol drug by his doctor, a brief admonition to follow a low-fat diet, and little else. One year later, Harry's heart scan score is 200, a doubling (100% increase) of the original score.

At this point, we're left with Tom having a score of 400, Harry with a score of 200. That is, Tom has twice Harry's score, 200 points higher. Who's better off?

Tom with the score of 400 is better off. Even though he has a significantly higher score, Tom's plaque is regressing. Tom's plaque is therefore quiescent with active components being extracted, inflammation subsiding, the artery in a more relaxed state, etc.

Harry's plaque, in contrast, is active and growing: inflammatory cells are abundant and producing enzymes that degrade supportive tissue, constrictive factors are released that cause the artery to pinch partially closed, fatty materials accumulate and trigger a cascade of abnormal responses.

So it's not just the score--the quantity of atherosclerotic plaque present--but the state of activity of the plaque: Is it growing, is it being reduced? Is there escalating or subsiding inflammation? Is plaque filled with degradative enzymes or quiescent?

Following the Track Your Plaque program therefore leads us to the notion that it's not the score that's most important; the most important thing is what you're doing about it. We sometimes say that Track Your Plaque makes you safer at any score.

Triglyceride and chylomicron "stacking"

10. November 2009 William Davis (24)
Continuing the comments started in Grazing is for cattle, here's an interesting study from the Oxford Center for Diabetes, Endocrinology and Metabolism.

Volunteers were fed a test meal breakfast of Rice Krispies, a banana, and a chocolate milkshake (76.4 grams carbohydrates, 51.9 grams fat, 12.2 grams protein). Lunch was served 5 hours later and consisted of a cheese sandwich and a second chocolate milkshake 43.4 grams carbohydrates, 49.6 grams fat, 24.0 grams protein). Frequent blood samples were then assessed over the day. (Don't try this at home: These are obviously very dangerous foods!)

Here's the pattern of triglycerides that was observed (1st dotted vertical line = breakfast, 2nd dotted vertical line = lunch):



Note that triglycerides only begin to decline 3-4 hours after breakfast, only to peak higher after lunch.


Here's the pattern observed for chylomicrons, the "granddaddy" of lipoproteins that derives from intestinal absorption of fatty acids:



Both graphs from Heath RB et al Am J Phyiol Endocrinol Metab 2006.


With chylomicrons, note a similar pattern to triglycerides: Chylomicrons begin to decline at 3-4 hours, only to peak higher after lunch.

This is the first study to examine the effect of sequential meals on such postprandial (after-eating) patterns. But it makes the graphic point that, if insufficient time is permitted between meals, both triglycerides and chylomicrons will "stack" themselves higher and higher. (Chylomicrons are subjected to processing by the enzyme, lipoprotein lipase, to form highly atherogenic, or plaque-causing, chylomicron remnants.)

While not examined in this study, my bet is that "grazing," i.e., eating small meals or snacks frequently, is an extreme instance of triglyceride, chylomicron, and chylomicron remnant stacking. That can only lead to one thing: accelerated heart and vascular plaque.

What is a healthy vitamin D blood level?

9. November 2009 William Davis (32)
When measuring blood levels of vitamin D (as 25-hydroxy vitamin D), what constitutes a desirable level?

There's no study that directly examines this question, no study that enrolled thousands of people and assigned a placebo group and groups receiving escalating doses of vitamin D and/or achieved higher levels of vitamin D, then observed for development of cancer, diabetes, depression, heart disease, multiple sclerosis, osteoporosis, osteoarthritis, etc. Such a study would requires many thousands of participants (particularly to observe cancer and multiple sclerosis incidence), many years of observation, and many tens of millions of dollars. Nope, only a drug company could afford such costs.

So we have to piece together various observations and extrapolate what we believe to be the ideal level of vitamin D. Epidemiologic observations in several cancers (breast, colon, prostate, and bladder) suggest that a 25-hydroxy vitamin D level of 30 ng/ml or higher is desirable (with less cancer incidence above this level). Other data suggest a level of 52 ng/ml or greater is desirable. Unfortunately, much cancer research looked at intake of vitamin D from food and supplement sources, rather than actual blood levels. We also have to factor in the great individual variation in vitamin D metabolism, with a single dose yielding variable blood levels (as much as a 10-fold difference). There's also the variation introduced by vitamin D-receptor variation (genetic polymorphisms).

A new study using vitamin D administration helps chart the desirable levels of vitamin D.

Vitamin D supplementation reduces insulin resistance in South Asian women living in New Zealand who are insulin resistant and vitamin D deficient - a randomised, placebo-controlled trial.

In this New Zealand study, 42 women (23 to 68 years old) were given 4000 units vitamin D, 39 women given placebo. Median 25-hydroxy vitamin D levels increased from 21 nmol/L (8.4 ng/ml) to 75 nmol/L (30 ng/ml). Both HOMA (a measure of insulin sensitivity) and fasting insulin levels improved, with greatest improvement seen at 25-hydroxy vitamin D levels of 80-119 nmol/L (32-47.6 ng/ml) or greater.

We also know that a vacation on a Caribbean beach in a bathing suit will increase vitamin D blood levels to the 80-110 ng/ml range without ill-effect (at least in young people who maintain the capacity to activate vitamin D in the skin, a phenomenon that declines as we age).

So do we really know the truly ideal level of vitamin D to achieve? I believe that, given the above observations, it is reasonable to extrapolate that the ideal vitamin D blood level likely lies somewhere above 50 ng/ml. We also know that vitamin D toxicity (i.e., hypercalcemia) is virtually unheard of until vitamin D blood levels approach 150 ng/ml, and even then is inconsistent. The health benefits of vitamin D supplementation are so tremendous, that I am not willing to wait for the prospective data to explore this question fully. For now, I aim for a blood level of vitamin D of 60-70 ng/ml (150-175 nmol/L).

Grazing is for cattle

5. November 2009 William Davis (17)
Many dietitians and nutritionists advise many people today to "graze," i.e., to eat small snacks every couple of hours. They argue that it blocks the drop in insulin and blood sugar that can trigger greater appetite and claim it can facilitate weight loss.



This is an absurd notion. Humans are not meant to graze. Humans are meant to find a wild boar or other animal, kill it, gorge on the meat, organs, and fat, then revert to berries, roots, leaves, and other foraged foods until the next kill. A human living in the wild does not have a cupboard or refrigerator full of ready-to-eat snacks to graze on.

The several hours after a meal is the most dangerous for creating coronary atherosclerotic plaque, i.e., the post-prandial period. In other words, eat dinner and, for the next 6-12 hours, your intestinal tract degrades the food; food byproducts are absorbed into the blood or lymph system. The blood is literally flooded with the byproducts of your meal.

Postprandial abnormalities are emerging to be a potent, and much underappreciated, means of causing heart disease and atherosclerosis in other vascular territories (especially carotid arteries and thoracic aorta).

Not eating--i.e., the fasting state--for extended periods is good for you. Encouraging people to graze amplifies atherosclerotic risk, since it creates an abnormal prolonged postprandial state.

The disastrous results of a low-fat diet

4. November 2009 William Davis (16)
Rob was never that committed to following the program in the first place.

I met Rob because of a modest heart scan score and consultation for a cholesterol abnormality. Rob had been cycled through all the statin agents by his primary care physician, all of which resulted in terrible muscle aches that he found intolerable.

I started out, as usual, characterizing his cholesterol abnormality with lipoprotein testing (NMR):

LDL particle number 1489 nmol/L
LDL cholesterol (Friedewald calculation) 143 mg/dl
Small LDL 52% of total LDL
HDL 50 mg/dl
Triglycerides 82 mg/dl

(LDL particle number is the emerging gold standard for LDL quantification, superior to calculated or Friedewald LDL cholesterol for prediction of cardiovascular events.)

Rob is a busy guy. After only a couple of brief visits, life and work got in the way and Rob let his attentions drift away from heart health. Since the information I provided made little impact on his thinking, he reverted to the low-fat diet his primary care doctor had originally prescribed and that he read about in magazines and food packages. He also ran out of the basic supplements I had advised, including fish oil and vitamin D, and just never restarted them.

A couple of years passed and Rob decided that just poking around on his own might not cut it. So he came back to the office. We repeated his NMR lipoprotein analysis:

LDL particle number 2699 nmol/L
LDL cholesterol (Friedewald calculation) 229 mg/dl
Small LDL 81% of total LDL
HDL 53 mg/dl
Triglycerides 78 mg/dl


Two years of a low-fat diet had caused Rob's LDL particle number to skyrocket by 81%, nearly all due to an explosion of small LDL. Recall that small LDL is more susceptible to oxidation, more inflammation-provoking, more adhesive--the form of LDL particles most likely to cause heart disease.

Also, note that, despite the enormous increase in small LDL, HDL and triglycerides remained favorable. This counters the popular rule-of-thumb offered by some that small LDL is not present when HDL is "normal."

Low-fat diets as commonly practiced are enormously destructive. In Rob's case, a low-fat diet caused both calculated Friedewald LDL as well as LDL particle number to increase dramatically. In many other people, low-fat diets increase calculated Friedewald LDL modestly or not at all, but cause the more accurate LDL particle number to increase significantly, all due to small LDL.

I'm happy to say that, once Rob witnessed how far wrong he could go on the wrong program, he's back on Track. (Sorry, pun intended.) He has resumed his supplements and eliminated the food triggers of small LDL--wheat, cornstarch, and sugars.

Dr. David Grimes reminds us of vitamin D

3. November 2009 William Davis (13)
In response to the Heart Scan Blog post, Fish oil makes you happy: Psychological distress and omega-3 index, Dr. David Grimes offered the following argument.

Dr. Grimes is a physician in northwest England at the Blackburn Royal Infirmary, Lancashire. He is author of the wonderfully cheeky 2006 Lancet editorial, Are statins analogues of vitamin D?, questioning whether the benefits of statin drugs simply work by way of increased vitamin D blood levels.


There is a fashionable interest in Omega-3 fatty acids, and these become equated with fish oil.

But fish oil is much more. Plankton synthesise the related squalene (shark oil) which, in turn, is converted into 7-dehydrocholesterol (7-DHC). The sun now comes into play and it converts 7-DHC into vitamin D (a physico-chemical process).

Small fish eat plankton, large fish eat small fish, and we eat large fish. So vitamin D passes through the food chain.

This has been a vital source of vitamin D for the the Inuits and also for the Scots and other dwellers of northwest Europe. (Edinburgh is on the same latitude as Hudson Bay and Alaska, further north than anywhere in China). In these locations there is not adequate sunlight energy to guarantee synthesis of adequate amounts of vitamin D, again by the action of sunlight on 7-DHC in the skin.

When the Scots moved from coastal fishing villages to industrial cities such as Glasgow, they became seriously deficient in vitamin D, and so the emergence of rickets. This was followed by a variety of other diseases resulting from vitamin D deficiency: tuberculosis, dental decay, coronary heart disease, and even multiple sclerosis and depression (the Glasgow syndrome).

And so it was with the Inuits. When their diet changed from fish for breakfast, fish for lunch, fish for dinner, they became deficient of vitamin D and they developed diseases characteristic of industrial cities, where there is indoor work for long hours, indoor activities, and atmospheric pollution.

It is the vitamin D component of fish and fish oils that is important.

I recently saw an elderly lady from Bangladesh living in northwest England. I would have expected her to have a very low blood level of vitamin D, as her exposure to the sun was minimal. However the blood level was 47ng/ml, not 4 as expected. She eats oily fish from Bangladesh every day, showing its value as a source of vitamin D with subsequent good health. I expect her blood levels of omega-3 fatty acids would also be high.

But it is unfashionable vitamin D that is important, not fashionable omega-3.

David Grimes
www.vitamindandcholesterol.com


Excellent point. The health effects of omega-3 and vitamin D are intimately intertwined when examining populations that consume fish.

In this study of Inuits, it is indeed impossible to dissect out how much psychological distress was due to reduced vitamin D, how much due to reduced omega-3s. My bet is that it's both. Thankfully, we also have data examining the use of pure omega-3 fatty acids in capsule (not intact fish) form, including studies like GISSI Prevenzione.

Nonetheless, Dr. Grimes reminds us that both vitamin D and omega-3 fatty acids from fish oil play crucial roles in mental health and other aspects of health, and that it's the combination that may account for the extravagant health effects previously ascribed only to omega-3s.

Why does fish oil reduce triglycerides?

2. November 2009 William Davis (9)
Beyond its ability to slash risk for cardiovascular events, omega-3 fatty acids from fish oil also reduce triglycerides.

There's no remaining question that omega-3s do this quite effectively. After all, the FDA approved prescription fish oil, Lovaza, to treat a condition called familial hypertriglyceridemia, an inherited condition in which very high triglycerides in the 100s or 1000s of milligrams typically develop.

The omega-3 fraction of fatty acids are unique for their triglyceride-reducing property. No other fraction of fatty acids, such as omega-6 or saturated, can match the triglyceride-reducing effect of omega-3s.

But why does fish oil reduce triglycerides?

First of all, what are triglycerides? As their name suggests, triglycerides consist of three ("tri-") fatty acids lined up along a glycerol (sugar) "backbone." Triglycerides are the form in which most fatty acids occur in the bloodstream, liver, and other organs. (Fatty acids, like omega-3, omega-6, mono- or polyunsaturated, or saturated, rarely occur as free fatty acids unbound to glycerol.) In various lipoproteins in the blood, like LDL, VLDL, and HDL, fatty acids occur as triglycerides.

Of all lipoproteins, chylomicrons (the large particle formed through intestinal absorption of fatty acids and transported to the liver via the lymph system) and VLDL (very low-density lipoprotein, very low-density because they are mostly fat and little protein) particles are richest in triglycerides. Thus, we would expect that omega-3s exert their triglyceride-reducing effect via reductions in either chylomicrons or VLDL.

Indeed, that seems to be the case. The emerging evidence suggests that omega-3 fatty acids from fish oil reduce triglycerides through:

--Reduced VLDL production by the liver (Harris 1989)
--Accelerating chylomicron and VLDL elimination from the blood
--Activation of peroxisome proliferator-activated receptor gamma (PPAR-gamma)--Omega-3s ramp up the cellular equipment used to convert fatty acids to energy (oxidation) (Gani 2008)

Combine omega-3 fatty acids from fish oil with wheat elimination and you have an extremely potent means of reducing triglycerides. Read a previous Heart Scan Blog post here to read how a patient reduced triglycerides 93.5% from 3100 mg/dl to 210 mg/dl in just a few weeks using fish oil and wheat elimination.