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

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

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

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

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






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

Oatmeal: Good or bad?

11. mars 2010 William Davis (67)

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

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

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

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

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

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

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

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

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

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

Mustard: Super health food?

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

Consider that mustard contains:

Vinegar

Turmeric

No appreciable sugar


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

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

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

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

Exercise and blood sugar

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

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

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

Think about it. Reduced blood sugar:

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

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

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

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

The most important weight loss tool

4. mars 2010 William Davis (15)

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


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

A treadmill? 




A bicycle?






No. None of the above. 

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



Timing of blood sugars

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

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

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

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


From Juntunen et al 2002

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

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


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

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

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

Psssst . . . There's sugar in there

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

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

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

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

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

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

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


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

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

How low should blood sugar be?

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

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

Here's what they found:




From Brunner et al 2006.

Low thyroid: What to do?

8. February 2009 William Davis (25)
I've gotten a number of requests for solutions on how to solve the low thyroid issue if either 1) your doctor refuses to discuss the issue or denies it is present, or 2) there are government mandates against thyroid correction unless certain (outdated) targets are met.

Oh, boy.

While I'm not encouraging anyone to break the laws or regulations of their country (and it's impossible to generalize, with readers of this blog originating from over 30 countries), here are some simple steps to consider that might help you in your quest to correct hypothyroidism:

--Measure your body temperature--First thing in the morning either while lying in bed or go to the bathroom and measure your oral temp. Record it and, if it is consistently lower than 97.0 degrees (Fahrenheit), show it to your doctor. This may help persuade him/her.(You can still be hypothyroid with higher temperatures, but if low temperatures are present, it is simply more persuasive evidence in favor of treatment).

--Supplement with iodine 150 mcg per day to be sure you are not iodine deficient. This is becoming more common in the U.S. as people avoid iodized salt. It is quite common outside the U.S. An easy, inexpensive preparation is kelp tablets.

--Show your doctor a recent crucial study: The HUNT Study that suggests that cardiovascular mortality begins to increase at a TSH of only 1.5 or greater, not the 5.5 mIU usually used by laboratories and doctors.

--Ask people around you whether they are aware of a health practitioner who might be willing to work with you, or at least have an open mind (sadly, an uncommon commodity).

Also, see thyroid advocate and prolific author, Mary Shomon's advice on how to find a doctor willing to work with you. Yes, they are out there, but you may have to ask a lot of friends and acquaintances, or meet and fire a lot of docs. It shouldn't be this way, but it is. It will change through public pressure and education, but not by next week.

Another helpful discussion from Mary Shomon: The TSH Normal Range: Why is there still controversy? You will read that even the endocrinologists (a peculiarly contentious group) seethingly debate what constitutes normal vs. low thyroid function.

Also, you might remind a resistant health practitioner that guidelines are guidelines--they are not laws that restrain anyone. They are simply meant to represent broad population guidelines that do not take your personal health situation into consideration.

Which statin drug is best?

8. February 2009 William Davis (7)
I re-post a Heart Scan Blog post from one year ago, answering the question: Which statin drug is best?

I still get this question from patients in the office and online, nearly always prompted by a TV commercial. So let me re-express my thoughts from a year ago, which have not changed on this issue.


The statin drugs can indeed play a role in a program of coronary plaque control and regression.

However, thanks to the overwhelming marketing (and lobbying and legislative) clout of the drug manufacturing industry, they play an undeserved, oversized role. I get reminded of this whenever I'm pressed to answer the question: "Which statin drug is best?"

In trying to answer this question, we encounter several difficulties:

1) The data nearly all use statins drugs by themselves, as so-called monotherapy. Other than the standard diet--you know, the American Heart Association diet, the one that causes heart disease--it is a statin drug alone that has been studied in the dozens of major trials "validating" statin drug use. The repeated failure of statin drugs to eliminate heart disease and associated events like heart attack keeps being answered by the "lower is better" argument, i.e., if 70% of heart attacks destined to occur still take place, then reduce LDL even further. This is an absurd argument that inevitably encounters a wall of limited effects.

2) The great bulk of clinical data examining both the incidence of cardiovascular events as well as plaque progression or regression have all been sponsored by the drug's manufacturer. It has been well-documnted that, when a drug manufacturer sponsors a trial, the outcome is highly likely to be in favor of that drug. Imagine Ford sponsors a $30 million study to prove that their cars are more reliable and safer. What is the likelihood that the outcome will be in favor of the competition? Very unlikely. Such is human nature.

If we were to accept the clinical trial data at face value and ignore the above issues, then I would come to the conclusion that we should be using Crestor at a dose of 40 mg per day, since that was the regimen used in the ASTEROID Trial that achieved modest reversal of coronary atherosclerotic plaque by intravascular ultrasound.

But I do not advocate such an ASTEROID-like approach for several reasons:

1) In my experience, nobody can tolerate 40 mg of Crestor for more than few weeks, a few months at most. Show me someone who can survive and tolerate Crestor 40 mg per day and I'll show you somebody who survived a 40 foot fall off his roof--sure, it happens, but it's a fluke.

2) The notion that only one drug is necessary to regress this disease is, in my view, absurd. It ignores issues like hypertension, metabolic syndrome, inflammatory phenomena, lipoprotein(a), post-prandial (after-eating) phenomena, LDL particle size, triglycerides, etc. You mean that Crestor 40 mg per day, or other high-intensity statin monotherapy should be enough to overcome all of these patterns and provide maximal potential for coronary plaque reversal? No way.

3) Plaque reversal can occur without a statin agent. While statin drugs may provide some advantage in the reduction of LDL, much of the benefit ends there. All of the other dozens of causes of coronary atherosclerotic plaque need to be addressed.

So which statin is best? This question is evidence of the brainwashing that has seized the public and my colleagues. The question is not which statin is best. The question should be: What steps do I take to maximize my chances of reversing coronary atherosclerotic plaque?

The answer may or may not involve a statin drug, regardless of the subtle differences among them.

Dr. Nancy Sniderman, heart scans on Today Show

5. February 2009 William Davis (6)
While shaving this morning, I caught the report by NBC medical expert, Dr. Nancy Sniderman, about her coronary plaque and CT coronary angiogram.

Visit msnbc.com for Breaking News, World News, and News about the Economy




Those of you in the Track Your Plaque program or who follow The Heart Scan Blog know that we should tell Dr. Sniderman and her doctor that:

She has done virtually nothing that will stop an increasing heart scan score! In fact, Dr. Sniderman is now following the "prevention program" that is eerily reminiscent of Tim Russert's program! We all know how that turned out.

It is pure folly to believe that a combination of Lipitor, exercise, and a "healthy diet" (usually meaning a low-fat diet--yes, the diet that promotes heart disease) will stop the otherwise relentless increase in heart scan score.

Dr. Sniderman, please consider:

1) Having the real causes of your coronary plaque identified. (It is highly unlikely to be just LDL cholesterol, though the drug industry is thrilled that you believe this.)

2) Ask yourself (or, if your doctor knew what she was doing, ask her): Why do I have heart disease? LDL cholesterol is insufficient reason--virtually nobody I know has high LDL cholesterol as the sole cause. LDL cholesterol is, at most, one reason among many others, but is insufficient as a sole cause.

3) What is your vitamin D status? Crucial!

4) What is your thyroid status?

5) Fish oil--a must!

6) Do you have lipoprotein(a)? Small LDL?

Just addressing the items on the above checklist would put you on a far more confident path to stop your heart scan score from increasing.

If you were to repeat your heart scan score, my prediction: Your score will be higher by 18-24% per year.

My personal experience with low thyroid

3. February 2009 William Davis (31)
Something happened to me around October-November of last year.

I usually feel great. Ordinarily, my struggles are sleeping and relaxing. As with most people, I have too many projects on my schedule, though I find my activities stimulating and fascinating.

I blasted through a very demanding November, trying to meet the needs of a book publisher. This involved sleeping only a few hours a night for several days on end, all after a full day of office practice and hospital duties.

But it was getting tougher. My concentration was becoming more fragmented. Getting things done was proving an elusive goal. Exercise became a real chore.

Although I usually force myself to go to sleep, I was starting to fall asleep before my usual bedtime, and I was sleeping longer than usual.

It's been a tough winter in Wisconsin. Let's face it: It's Wisconsin. But it's been tough even for this region, with weeks of temperatures consistently below 10 degrees. Even so, I was having a heck of a time keeping warm. Extra shirts, socks, soaking my hands in hot water--none of it worked and I was freezing.

So I had my thyroid values checked:

Free T3: 2.6 pg/ml (Ref 2.3-4.2)
Free T4: 1.20 ng/dl (Ref 0.89-1.76)
TSH: 1.528 uUI/ml (Ref 0.350-5.500)

Normal by virtually all standards. I measured my first morning oral temperature: 96.1, 96.3, 95.9. Hmmmm.

My experience coincided with the Track Your Plaque and Heart Scan Blog conversations about low thyroid being enormously underappreciated, with the newest data on thyroid disease suggesting that a TSH for ideal health is probably 1.5 mIU or less. (More about that: Is normal TSH too high? and Thyroid perspective update .

Could this simply be a case of medical student-oma in which every beginning medical student believes he has every disease he learns about?

Despite the apparently "normal" thyroid blood tests, I took the leap and started taking Armour thyroid, beginning at 1/2 grain (30 mg), increasing to 1 grain (60 mg) after the first week.

Within 10 days, I experienced:

--Dramatic restoration of the ability to concentrate
--A boost in mood. (In fact, the last few blog posts before I replaced thyroid reflect my deepening crabbiness.)
--Large increase in energy, now restored to old levels
--Need for less sleep
--I'm warm again! (It's still <20 degrees, but I get easily stay warm while indoors.)

I am absolutely, positively convinced of the power of thyroid. I am further convinced from the clinical data, patient experiences, and now my own personal experience, that low levels of hypothyroidism are being dramatically underappreciated and underdiagnosed.

I shudder to think of what my life would have been like 6 months or a year from now without correction of thyroid hormone.

Now, the tough question: Why the heck is this happening to so many people?

Speaking availability

3. February 2009 William Davis (5)
Just a quick announcement:

If you would like to hear more about the concepts articulated in The Heart Scan Blog or in the Track Your Plaque program, I am available to speak to your group.

Among the possible topics:

Return to the Wild: Natural Nutritional Supplements That Supercharge Health
Why this apparent "need" for fish oil and other heart-healthy supplements? I discuss why some nutritional supplements make perfect sense when we are viewed in the context of primitive humans living modern lives, while other supplements do little.


Shrink Your Tummy . . .or, Why Your Dietitian is Fat!
Weight loss doesn't have to involve calorie counting, deprivation, or hunger pangs. But the conventional "rules" for weight loss and health have to be broken.

The Politically Incorrect Guide to Extraordinary Heart Health
Heart health is something that you can seize control over, something identifiable, correctable, and . . . reversible. Much of this can be achieved with little or no medication, nor procedures. I detail all the enormously empowering lessons learned through the Track Your Plaque program.


I can also present in-depth yet entertaining discussions on the power of vitamin D, natural cholesterol control, screening for heart disease, and similar topics covered in the blog.

To learn more, just e-mail us at contact@trackyourplaque, or call my office at 414-456-1123.

Learn how to eat from Survivorman

31. January 2009 William Davis (22)

Look no farther than Discovery Channel to learn how humans were meant to eat.

The Survivorman show documents the (self-filmed) 7-day adventures of Les Stroud, who is dropped into various remote corners of the world to survive on little but ingenuity and will to live. Starting without food or water, the Survivorman scrapes and scrambles in the wilderness for essentials to survive in habitats as far ranging as the Ecuadorian rainforest to sub-arctic Labrador.

What does Survivorman have to do with your nutrition habits?

Everything. The lessons we can learn by watching this TV show are plenty.

Survivorman plays out the life we are supposed to be living: slaughtering wild game with simple handmade tools and his bare hands, identifying plants and berries that are safe to eat, trapping fish, scavenging the kill of other predators. He's even resorted to eating bugs and caterpillars, particularly following several days of unsuccessful hunting and scavenging.

What is notable from the Survivorman experience is what is absent: In the steppe, desert, tundra, or jungle, you will not find bread, fruit drinks, or Cheerios. You won't find farm-fattened, corn-fed livestock with meat marbled with fat.

Imagine the result of such an experience for us, drawn out over 6 months. Even an obese, diabetic, gluttonous, XXX dress size 350-lb woman would return a lean 105 lbs, size 0, non-diabetic, fully able to run miles in the wild tracking game.

Survivorman's quiet desperation of living in the wild, preoccupied with worries over where his next meal might be found, is a stark contrast to the bloated, shelves stacked floor-to-ceiling supermarkets, and our modern society's all-you-can-eat several times per day lifestyle.

Am I advocating selling the car and house and chucking modern society for the "safety" of the jungles of Borneo?

No, of course not. I am advocating taking a lesson from the clever experiment conducted by Mr. Stroud, a return-to-the-wild experience that should teach us something about how perverse our modern nutritional lives have become.

CIS: Carbohydrate intolerance syndrome

28. January 2009 William Davis (28)
Carbohydrate intolerance comes in many shades and colors, shapes and sizes.

I call all of its varieties the Carbohydrate Intolerance Syndrome, or CIS. (Not to be confused with CSI, or Crime Scene Investigation . . . though, come to think of it, perhaps there are some interesting parallels!)

At its extreme, it is called type II diabetes, in which any carbohydrate generates an extravant increase in blood sugar, followed by the domino effect of increased triglycerides, reduction in HDL, creation of small LDL, heightened inflammation, etc. and eventually to kidney disease, coronary atherosclerosis, neuropathies, etc.

An intermediate form of carbohydrate intolerance is called metabolic syndrome, or pre-diabetes. These people, for the most part, look and act like diabetics, though their reaction to carbohydrate intake is not as bad. Blood sugar, for instance, might be 125 mg/dl fasting, 160 mg/dl after eating. The semi-arbitrary definition of metabolic syndrome includes at least three of the following: HDL <40 mg/dl in men, <50 mg/dl in women; triglycerides 150 mg/dl or greater; BP 135/80 or greater; waist circumference >40 inches in men, >35 inches in women; fasting glucose >100 mg/dl.

This is where the conventional definitions stop: Either you are diabetic or have metabolic syndrome, or you have nothing at all.

Unfortunately, this means that the millions of people with patterns not severe enough to match the standard definition of metabolic syndrome are often neglected.

How about Kevin?

Kevin, a 56 year old financial planner, is 5 ft 7 inches, 180 lbs (BMI 28.2). His basic measures:

HDL 36 mg/dl
Triglycerides 333 mg/dl
BP 132/78
Waist circumference 34 inches
Blood sugar 98 mg/dl

Kevin meets the criteria for metabolic syndrome on only two of the five criteria and therefore does not "qualify" for the diagnosis.

Kevin's basic lipids showed LDL 170 mg/dl, HDL 36 mg/dl, triglycerides 333 mg/dl.

But take a look at his underlying lipoprotein patterns (NMR):

LDL particle number 2231 nmol/L (equivalent to a "true" LDL of 223 mg/dl)
Small LDL 1811 nmol/l
Large HDL 0.0 mg/dl


In other words, small LDL constitutes 81% of all LDL particles (1811/2231), a severe pattern. Large HDL is the healthy, protective fraction and Kevin has none. These are high-risk patterns for heart disease. These, too, are patterns of carbohydrate intolerance.

Foods that trigger small LDL and reduction in healthy, large HDL include sugars, wheat, and cornstarch. Kevin is carbohydrate-intolerant, although he lacks the (fasting) blood sugar aspect of carbohydrate intolerance. But he shows all the underlying lipoprotein and other metabolic phenomena associated with carbohydrate intolerance.

We could also cast all three conditions under the umbrella of "insulin resistance." But I prefer Carbohydrate Intolerance Syndrome, or CIS, since it immediately suggests the basic underlying cause: eating carbohydrates, especially those that trigger rapid and substantial surges in blood sugar.

CIS is the Disease of the Century, judging by the figures (both numbers and humans) we are seeing. It will dominate healthcare in its various forms for many years to come.

The first treatment for the Carbohydrate Intolerance Syndrome? Some would say the TZD class of drugs like Avandia. Others would say a DASH or TLC (American Heart Association) diet. How about liposuction, twice-daily Byetta injections, or even the emerging class of drugs to manipulate leptin and adiponectin? How do "heart healthy" foods like Cheerios and Cocoa Puffs fit into this? (Don't believe me? The American Heart Association says they're heart healthy!)

The first treatment for the Carbohydrate Intolerance Syndrome is elimination of carbohydrates, except those that come from raw nuts and seeds, vegetables, occasional real fruit (not those green fake grapes), wine, and dark chocolates.

Making sense out of lipid changes

27. January 2009 William Davis (9)
Maggie had been doing well on her program, enjoying favorable lipids near our 60-60-60 targets (HDL 60 mg/dl or greater, LDL 60 mg/dl or less, triglycerides 60 mg/dl or less). Last fall, her last set of values were:

Total cholesterol: 149 mg/dl
LDL cholesterol: 67 mg/dl
HDL cholesterol: 73 mg/dl
Triglycerides: 43 mg/dl

The holidays, as with most people, involved a frenzy of indulgent eating: Christmas cookies, cakes, pies, stuffing, potatoes, candies, etc.

Maggie returned to the office 6 pounds heavier with these values:

Total cholesterol: 210 mg/dl
LDL cholesterol: 124 mg/dl
HDL cholesterol: 57 mg/dl
Triglycerides: 144 mg/dl

In other words, holiday indulgences caused an increase in LDL cholesterol, a reduction in HDL, an increase in triglycerides, an increase in total cholesterol.

What happened?

At first glance, many of my colleagues would interpret this as fat indulgence and/or a "need" for statin drug therapy.

Having done thousands of lipoprotein panels, I can tell you that, beneath the surface, the following has occurred:

--Overindulgence in carbohydrates from the goodies triggered triglyceride (actually VLDL) formation in the liver, released into the blood.
--Increased triglycerides and VLDL triggered a boom in conversion of large LDL to small LDL (since triglycerides are required to form small LDL particles) via cholesteryl-ester transfer protein (CETP) activity.
--Increased triglycerides and VLDL interacted with HDL particles, causing "remodeling" of HDL particles to the less desirable, less protective small particles, which do not persist as long in the blood, resulting in a reduction of HDL.

The critical factor is carbohydrate intake. This triggered a domino effect that is often misintepreted as excessive fat intake or a genetic predisposition. It is nothing of the kind.

I discussed this phenomenon with Maggie. She now knows to not overindulge in the holiday snacks in future and will revert promptly back to her 60-60-60 values.

How to Give Yourself Hashimoto's Thyroiditis: 101

25. January 2009 William Davis (18)
I borrowed this from the enormously clever Dr. BG at The Animal Pharm Blog.


How to Give Yourself Hashimoto's Thyroiditis: 101

--lack of sunlight/vitamin D/indoor habitation
--mental stress
--more mental stress
--sleep deprivation... (excessive mochas/lattes at Berkeley cafes)
--excessive 'social' calendar
--inherent family history of autoimmune disorders (who doesn't??)
--wheat, wheat, and more wheat ingestion ('comfort foods' craved in times of high cortisol/stress, right? how did I know the carbs were killing me?)
--lack of nutritious food containing EPA DHA, vitamin A, sat fats, minerals, iodine, etc
--lack of play, exercise, movement (or ?overtraining perhaps for Oprah's case)
--weight gain -- which begins an endless self-perpetuating vicous cycle of all the above (Is it stressful to balloon out for no apparent reason? YES)


If you haven't done so already, take a look at Animal Pharm you will get a real kick out of Dr. BG's quick-witted take on things.


We are systematically looking for low thyroid (hypothyroidism) in everyone and findings oodles of it, far more than I ever expected.

Much of the low thyroid phenomena is due to active or previous Hashimoto's thyroiditis, the inflammatory process that exerts destructive effects on the delicate thyroid gland. It is presently unclear how much is due to iodine deficiency in this area, though iodine supplementation by itself (i.e., without thyroid hormone replacement) has not been yielding improved thyroid measures.

I find this bothersome: Is low thyroid function the consequence of direct thyroid toxins (flame retardants like polybrominated diphenyl ethers, pesticide residues in vegetables and fruits, bisphenol A from polycarbonate plastics) or indirect toxins such as wheat via an autoimmune process (similar to that seen in celiac disease)?

I don't know, but we've got to deal with the thyroid-destructive aftermath: Look for thyroid dysfunction, even in those without symptoms, and correct it. This has become a basic tenet of the Track Your Plaque approach for intensive reduction of coronary risk.

Framing

24. January 2009 William Davis (0)
Heart health without a 12" incision



Heart health for less than $44,483 (Cost of a coronary stent according to the American Heart Association 2008 Update)



Track Your Plaque: A drug-free zone



ore recent omega-3 intake than the more stable and slower-to-change RBC Omega-3 Index that we use. Plasma levels also tend to run about 10-20% lower than RBC levels.)

Of course, there's more to psychological distress than omega-3 blood levels. After all, eating fish or taking fish oil capsules won't make money worries go away or heal an unhappy marriage. But it is one variable that can be easily and safely remedied.

Hospitals are a hell of a place to get sick

29. October 2009 William Davis (19)
I answered a page from a hospital nurse recently one evening while having dinner with the family.

RN: "This is Lonnie. I'm a nurse at _____ Hospital. I've got one of your patients here, Mrs. Carole Simpson. She's here for a knee replacement with Dr. Johnson. She says she's taking 12,000 units of vitamin D every day. That can't be right! So I'm calling to verify."

WD: "That's right. We gauge patients' vitamin D needs by blood levels of vitamin D. Carole has had perfect levels of vitamin D on that dose."

RN: "The pharmacist says he can replace it with a 50,000 unit tablet."

WD: "Well, go ahead while Carole's in the hospital. I'll just put her back on the real stuff when she leaves."

RN: "But the pharmacist says this is better and she won't have to take so many capsules. She takes six 2,000 unit capsules a day."

WD: "The 50,000 units you and the pharmacist are talking about is vitamin D2, or ergocalciferol, a non-human form. Carole is taking vitamin D3, or cholecalciferol, the human form. The last time I checked, Carole was human."

RN: (Long pause.) Can we just give her the 50,000 unit tablet?

WD: "Yes, you can. But you actually don't need to. In fact, it probably won't hurt anything to just hold the vitamin D altogether for the 3 days she's in the hospital, since the half-life of vitamin D is about 8 weeks. Her blood level will barely change by just holding it for 3 days, then resuming when she's discharged."

RN: (Another long pause.) Uh, okay. Can we just give her the 50,000 units?"

WD: "Yes, you can. No harm will be done. It's simply a less effective form. To be honest, once Carole leaves the hospital, I will just put her back on the vitamin D that she was taking."

RN: "Dr. Johnson was worried that it might make her bleed during surgery. Shouldn't we just stop it?"

WD: "No. Vitamin D has no effect on blood coagulation. So there's no concern about perioperative bleeding."

RN: "The pharmacist said the 50,000 unit tablet was better, also, because it's the prescription form, not an over-the-counter form."

WD: "I can only tell you that Carole has had perfect blood levels on the over-the-counter preparation she was taking. It works just fine."

RN: "Okay. I guess we''ll just give her the 50,000 unit tablet."


From the alarm it raises trying to administer nutritional supplements in a hospital, you'd think that Osama Bin Laden had been spotted on the premises.

I laugh about this every time it happens: A patient gets hospitalized for whatever reason and the hospital staff see the supplement list with vitamin D, fish oil at high doses, iodine, etc. and they panic. They tell the patient about bleeding, cancer, and death, issue stern warnings about how unreliable and dangerous nutritional supplements can be.

My view is the exact opposite: Nutritional supplements are a wonderful, incredibly varied, and effective array of substances that, when used properly, can provide all manner of benefits. While there are selected instances in which nutritional supplements do, indeed, have interactions with treatments provided in hospitals (e.g., Valerian root and general anesthesia), the vast majority of supplements have none.

Does fish oil cause blood thinning?

27. October 2009 William Davis (20)
Omega-3 fatty acids from fish oil have the capacity to "thin the blood." In reality, omega-3s exert a mild platelet-blocking effect (platelet activation and "clumping" are part of clot formation), while also inhibiting arachidonic acid formation and thromboxane.

But can fish oil cause excessive bleeding?

This question comes up frequently in the office, particularly when my colleagues see the doses of fish oil we use for cardiovascular protection. "Why so much fish oil? That's too much blood thinning!"

The most recent addition to the conversation comes from a Philadelphia experience reported in the American Journal of Cardiology:

Comparison of bleeding complications with omega-3 fatty acids + aspirin + clopidogrel--versus--aspirin + clopidogrel in patients with cardiovascular disease.(Watson et al; Am J Cardiol 2009 Oct 15;104(8):1052-4).

All 364 subjects in the study took aspirin and Plavix (a platelet-inhibiting drug), mostly for coronary disease. Mean dose aspirin = 161 mg/day; mean dose Plavix = 75 mg/day. 182 of the subjects were also taking fish oil, mean dose 3000 mg with unspecified omega-3 content.

During nearly 3 years of observation, there was no excess of bleeding events in the group taking fish oil. (In fact, the group not taking fish oil had more bleeding events, though the difference fell short of achieving statistical significance.) Thus, 3000 mg per day of fish oil appeared to exert no observable increase in risk for bleeding. This is consistent with several other studies, including that including Coumadin (warfarin), with no increased bleeding risk when fish oil is added.

Rather than causing blood thinning, I prefer to think that omega-3 fatty acids from fish oil restore protection from abnormal clotting. Taking omega-3 fatty acids from fish oil simply restores a normal level of omega-3 fatty acids in the blood sufficient to strike a healthy balance between blood "thinning" and healthy blood clotting.

Heart Scan Blog readers take impressive doses of omega-3s

24. October 2009 William Davis (28)
Here are the results from the latest Heart Scan Blog poll:

What is your dose of omega-3 fatty acids, EPA + DHA, from fish oil? (Add up the total content of EPA + DHA per capsules; multiply times number of capsules.)

The 479 respondents answered:

Less than 1000 mg per day
65 (13%)

1000-1999 mg per day
145 (30%)

2000-2999 mg per day
98 (20%)

3000-3999 mg per day
79 (16%)

4000-4999 mg per day
33 (6%)

5000-5999 mg per day
14 (2%)

6000 mg per day or more
45 (9%)


The poll did not discriminate between who has heart disease, who does not; who is taking omega-3 fatty acids for high triglycerides or for reduction of lipoprotein(a) (which requires high doses), or other indications. So variation is to be expected.

We can say that nearly all respondents are likely receiving sufficient omega-3s to impact cardiovascular risk, since the benefits begin just by consuming fish twice per month. I am especially impressed at the proportion of respondents (53%) who take at least 2000 mg per day of EPA + DHA. It's clear that people are really embracing the notion that omega-3 fatty acids pack a real wallop of health benefits.

Because different people in different situations and lipid/lipoprotein patterns have different omega-3 needs, there is really no "right" or "wrong" dose of omega-3 fatty acids.

However, there are several factors that enter into knowing your ideal omega-3 intake:

--Higher triglycerides require higher doses
--Lipoprotein(a) can respond to higher doses
--Having coronary or carotid plaque means you desire a "therapeutic" dose of omega-3s, not just a "preventive" dose

Time is a factor, also: The longer you take omega-3s, the higher your blood levels go. You can accelerate the replacement of non-omega-3s with higher doses of omega-3s.

But too much is not good either. Some participants in Track Your Plaque, for instance, have experimented with very high doses of EPA + DHA in the 9000-10,000 per day range and witnessed dramatic increases in LDL.

Much of the uncertainty about dosing will also be cleared up as we get more experience with the Omega-3 RBC Index, i.e, the proportion of fatty acids in red blood cells that are omega-3s. We are currently aiming for an Omega-3 Index of 10%, given the heart attack reductions observed at this level.

How old are you?

17. October 2009 William Davis (21)
George walks into my office. I ask him his age.

"I'm 21 years old," he declares.

Yet I look at George. He's got gray thinning hair, his posture is slumped forward rather than erect, the flesh on his upper arms hangs loosely, he's got wrinkles on his hands and face, brown spots on the back of his hands and arms. He looks more like 70 years old to me. "I don't think you're 21 years old. I think you're 70."

"Prove it," he says.

Okay. What now? Minus any formal identification like a driver's license, how do I prove that George is really 70-something and not 20-something? Not an easy thing, when you think about it. If George were a tree, I'd cut him down and count his rings. Is there such a phenomenon in humans?

This is actually a fascinating area of research, looking for reliable biomarkers of aging.

Among the most quantitative markers of aging is telomere length. Telomeres were once dismissed as nonsense sequences in DNA. However, more recent thought among geneticists is that telomeres shorten with aging and provide the body's cells a timeline of aging. This way, George's cells act like they are 70, not 13, and don't start producing gobs of growth hormone and testosterone in preparation for puberty.

What can slow or stall the shortening of telomere length? There are two I'm aware of:

1) Caloric deprivation--i.e., taking in fewer calories. This was among the theories explored by Dr. Roy Walford during his Biosphere2 experience, based on his work in mice that showed that caloric deprivation nearly doubled lifespan.

2) Vitamin D--Richards et al (2007) found that, the higher the vitamin D, the longer the telomere length. The highest vitamin D levels conferred a 5-year effective difference in telomere length.

So, if I could look inside George's cells and count his telomeres, I could judge with confidence whether he was 21 or 70. Or, he could take vitamin D sufficient to increase blood levels to a healthy range and be more like 65.

No high blood pressure

14. October 2009 William Davis (20)
Primitive cultures that were, until recently, unexposed to the modern world, reveal some important insights into blood pressure.

The Yanomamo of South American, the Xingu Indians of Brazil, rural Kenyans, and the natives of Papua, New Guinea have average blood pressures of 103/63 mmHg. Even more incredibly, while 90% of modern Americans will develop high blood pressure as they age, the members of these primitive cultures do not develop age-related hypertension.

What's the secret? Perhaps the full "secret" of their remarkably low blood pressure has not been fully unraveled, but several observations have emerged:

--They are not exposed to modern processed foods like pretzels, crackers, and breakfast cereals.
--Low-carbohydrate foods. Carbohydrates are largely the product of the food industry, convenience foods bought in stores. No such thing in the jungle.
--Living outdoors, having to forage and hunt, walk to your destination, not drive or wait in line for food.
--Outdoor lives, wearing little more than a few strands of clothing, exposes you to plentiful vitamin D activation from sunlight exposure.
--Consuming wild game, rich in omega-3 fatty acids, enhances endothelial health and reduces blood pressure.
--Wild plants, roots, and berries, as well as wild game, along the coast, are richer in iodine.

The studies examining the habits of the Yanomamo and other primitive cultures focused principally on sodium intake. Indeed, the very low sodium intake of primitive cultures was associated with lower blood pressure--up to 6 mmHg reduction. But there's clearly more to learn than "cut your salt."

Name that food

13. October 2009 William Davis (30)
What common food can:

• Cause destructive intestinal damage that, if unrecognized, can lead to disability and death?
• Increase blood sugar higher and faster than table sugar?
• Trigger an autoimmune inflammatory condition in the thyroid (Hashimoto’s thyroiditis)?
• Create intestinal bloating, cramps, and alternating diarrhea and constipation, often labeled irritable bowel syndrome?
• Trigger schizophrenia in susceptible individuals?
• Cause behavioral outbursts in children with autism?
• Cause various inflammatory diseases such as rheumatoid arthritis, ulcerative colitis, dermatitis herpetiformis, systemic lupus, pancreatic destruction, and increase measures of inflammation like c-reactive protein?
• Cause unexplained anemia, mood swings, fatigue, fibromyalgia, eczema, and osteoporosis?


The food is wheat. Yes, the ubiquitous grain we are urged to eat more and more of by the USDA (8-11 servings per day, according to the USDA food pyramid), American Heart Association, American Dietetic Association, and the American Diabetes Association. Wheat is among the most destructive ingredients in the modern diet, worse than sugar, worse than high-fructose corn syrup, worse than any fat.

What other common food can result in such an extensive list of diseases, even death?

Celiac disease alone, a severe intestinal inflammatory condition from wheat gluten, affects an estimated 3 million Americans (Celiac Disease Foundation). The medical literature is filled with case reports of deaths from this disease, often after many years of struggle with incapacitating intestinal dysfunction and the sufferer's last days plagued by encephalopathy (brain inflammation).

What happens when you remove wheat from the diet?

The majority of people quickly shed 20-30 lbs in the first few weeks, selectively lost from the abdomen (what I call “wheat belly”); blood sugar plummets; triglycerides drop up to several hundred milligrams, HDL increases, LDL drops (yes, wheat elimination is a means of achieving marked reduction in LDL cholesterol, especially the small, heart disease-causing variety); c-reactive protein plummets. In addition to this, intestinal complaints improve or disappear, rashes improve, inflammatory conditions like rheumatoid arthritis improve, diabetes can improve or be cured, and behavioral disorders and mood improve.

Along with the ill-fated low-fat dietary advice of the last 40 years, the advice to eat plenty of "healthy whole grains" is responsible for untold disease and suffering. Yes, if you start with a fast food and junk diet and replace some of the calories with whole grains, you will be better off. (That was the logic--the Nutritional Syllogism--of the studies that established the benefits of whole grains over processed, "white" grains.)

But eliminate wheat grains and health takes a huge leap forward. And, no, there is no such thing as wheat deficiency--B vitamins, insoluble fiber, some protein--can easily be replaced by other foods.

Heart Defects Simplified

12. October 2009 William Davis (0)


For as long as I've known him, echocardiography technologist, Ken Heiden, has had a deep fascination with congenital heart disease. Ken has just written a wonderful book on congenital heart disease called Heart Defects Simplified.

While this is a bit off-topic for the Heart Scan Blog, I know that there is a serious lack of helpful information for people with congenital heart disease and parents of children with congenital heart defects. So I asked Ken to tell us something about his book.



WD: I've reviewed your book and have been thoroughly impressed with the clarity and detail with which you handle a complicated topic. You somehow manage to make it easy to grasp, far more than any other resource I've used in past. Do you feel that your book serves a previously unmet need?

KH: This book serves an unmet need in that it presents the complex subject of congenital heart defects in a simplified manner. Most books on this subject are anywhere from 300-1700 pages in length and tend to be written for doctors. Further, most of these books have very few diagrams, and they rely upon their explanations to describe these defects.

Heart Defects Simplified is 104 pages in length, describes the most common defects, including surgical repairs, in a two-page format with full-color diagrams on the left and complete descriptions on the right of each chapter. The book is particularly written for sonographers, nurses and parents, but it is valuable for anyone interested in this subject. It is particularly useful in clinical situations because it is convenient to lay out at your side with a coil-bound format and durable pages. Further, there are appendixes which include "Surgical Procedures in Alphabetical Order," "Prevalence of Congenital Heart Disease," "Scanning Protocols for Echocardiographers," "Imaging Tips," a glossary and a worksheet for echocardiographers.


WD: I know that many people with loved ones who have congenital heart defects, particularly parents of children with such conditions, are often kept in the dark about the details of the condition. Is your book suitable for the non-technical reader, such as parents?

KH: This book is an excellent resource for parents. It is written in language that is understandable by parents as well as technologists and nurses. The full-color diagrams provide invaluable insight into this very complex world. Most importantly, this book attempts to make the subject of congenital heart defects accessible to anyone who wishes to comprehend this subject.


WD: I understand that people with congenital heart defects and parents are active participants in online discussion groups. Will your book serve as a resource for people who participate in these groups?

KH: This book is not only a resource for sonographers and parents, but the book is accompanied by a blog (HeartDefectsforEveryone.blogspot.com) that attempts to address many of the concerns commonly encountered with congenital heart defects. This blog is a work in progress, but I hope to provide a forum for parents, healthcare personnel, and others to share their questions and concerns about congenital heart disease.

My experience with the omega-3 index

8. October 2009 William Davis (23)
I just got back my own results from the Gene Smart laboratory reporting my omega-3 index and omega-6:omega-3 ratio.

My results:

Omega-3 index: 8.2%

Omega-6:omega-3 index: 3.2 to 1

Not too bad, but not as good as I'd expected. Hmmm.

Although the omega-3 index of 8.2% puts me in the lower risk category for sudden cardiac death, I was hoping for a level of 10% or slightly greater, the level that I believe is more likely to be related to plaque inactivation or reversal. I obtained this level of omega-3 averaging an intake of EPA and DHA of about 2500 mg per day.

I was somewhat disappointed by the omega-6:omega-3 index. Although it's clearly better than the American average range of 20:1, it is short of the ideal of 2:1 or even 1:1. Since I purposely avoid omega-6-rich sources like corn oil, vegetable oils, sunflower or safflower oils, I wonder if I've overdone the nuts. The two ways to improve the omega-6:omega-3 ratio are to 1) decrease omega-6, or 2) increase omega-3. I'm going to do both.

So I thought I was doing pretty well. But there's clearly room for improvement.

Remember: If just reduction of cardiovascular risk is your interest, then a lackadaisical attitude towards these issues might work. But if your interest is elimination of risk and reversal of atherosclerotic plaque, then it pays to go the extra mile. In this case, knowing your omega-3 index and omega-6:omega-3 ratio might tighten up your program.

The Omega-3 Index: The higher, the better?

6. October 2009 William Davis (26)
So you take a few fish oil capsules every day and eat fish once or twice a week. What is the blood and tissue level of omega-3 fatty acids generated by your habits?

A number of variables enter into the equation. For instance, if you take fish oil capsules, what is the concentration of omega-3 fatty acids? How well are they absorbed? After absorption, how effectively are omega-3 fatty acids incorporated into cell membranes?

Even if you take fish oil supplements, it is hard to know just how much you’ve increased blood levels. It is now possible to measure the amount of omega-3 fatty acids in your bloodstream, a value called the omega-3 index. Too little and you might still be at high risk for cardiovascular events.


The Omega-3 index and sudden cardiac death

Two large studies have demonstrated that higher omega-3 blood (the level in red blood cells, or RBCs) levels were associated with reduced likelihood of sudden cardiac death. The risk for sudden cardiac death was 10-fold higher for the lowest omega-3 RBC levels compared to the highest.



Harris WS 2008; adapted from Siscovick DS et al 1995 and Albert CM et al 2002
(The omega-3 Index was derived from whole blood omega-3 levels, which correlate with RBC omega-3 levels, and are thus “estimated.”)


What’s the average omega-3 RBC level for Americans? Most Americans have omega-3 RBC levels in the 2.5-4.0% range, consistent with the tallest bars at the left and associated with greatest risk for sudden cardiac death. People with heart disease can have levels less than 1%. Some authorities propose that this new measure be called the omega-3 index.

Subsequent studies have shown that the omega-3 index has greater power to discriminate who will have a heart attack or die from sudden cardiac death better than any other common laboratory measure of coronary risk, including LDL cholesterol, HDL cholesterol, triglycerides, total cholesterol to HDL ratio, homocysteine, and c-reactive protein.

Just as hemoglobin A1c offers a 3-month look into blood glucose levels, the omega-3 index reflects your long-term omega-3 intake. The quantity of RBC omega-3s also closely parallels the quantity of omega-3s in heart tissues.


What is an ideal omega-3 index?

The above studies relating RBC omega-3 levels and sudden cardiac death suggest that a level of 6.3-7.3% is associated with far fewer fatal events?but events are not eliminated at this level. Is there even greater benefit with levels higher than 6.3-7.3%?

A recent analysis of females from the Harvard School of Public Health suggested that RBC omega-3 levels as high as 8.99% were still associated with non-fatal heart attack (myocardial infarction), compared to 9.36% in those without heart attacks. This suggests that even higher levels are necessary to prevent non-fatal events.

Should we target 10%? 12%? Maybe higher? Any higher and we are toeing the level achieved by the Inuits, the “Eskimoes” of Greenland, northern Canada and Alaska who have been observed to have a low rate of heart disease.


What’s your omega-3 index?

The appreciation of the importance of omega-3 fatty acids marks one of the greatest health revelations of the last 50 years. We can now measure it.

The ability to measure the proportion of omega-3 fatty acids in red blood cells may provide yet another means for all of us to further reduce risk for cardiovascular events.

If you are interested in knowing your omega-3 index, we are now making the fingerstick test kits available by going here.