Thursday, August 4, 2011

Another great post by Dr. William Davis on blood sugar

Yet another great post on blood sugar by Dr. Davis. Speaking of carbs with fewer bad effects than wheat, oatmeal, etc. (brown rice, black beans, etc.), he says:

So these non-wheat carbohydrates, or what I call “intermediate carbohydrates” (for lack of a better term; low-glycemic index is falsely reassuring) still trigger all the carbohydrate phenomena of table sugar. Is it possible to obtain the fiber, B-vitamin, flavonoid benefits of these intermediate carbohydrates without triggering the undesirable carbohydrate consequences?
Yes, by using small portions. Small portions are tolerated by most people without triggering all these phenomena. Problem: Individual sensitivity varies widely. One person’s perfectly safe portion size is another person’s deadly dose. For instance, I’ve witnessed many extreme differences, such as 1-hour blood sugar after 6 oz unsweetened yogurt of 250 mg/dl in one person, 105 mg/dl in another. So checking 1-hour blood sugars is a confident means of assessing individual sensitivity to carbs. 

Of course, others such as Robb Wolf (whose book, The Paleo Solution, is great) wouldn't want you eating them because of anti-nutrients (I'll write more about that some other day). And even Paul Jaminet of the Perfect Health Diet (another great book, by the way), who does advocate more carbs, around 100 grams/day (although not for those whose metabolic systems are compromised), only wants "safe carbs" (i.e. those without the problems) such as white rice (no anti-nutrients/safe source of glucose) and tubers such as sweet potatoes and taro.

Davis further says:

Some people don’t like the idea of checking blood sugars, however. Or, there might be times when it’s inconvenient or unavailable. A useful alternative: Count carbohydrate grams. (Count “net” carbohydrate grams, of course, i.e., carbohydrates minus indigestible fiber grams to yield “net” carbs.) Most people can tolerate around 40-50 grams carbohydrates per day and deal with them effectively, provided they are spaced out throughout the day and not all at once. Only the most sensitive, e.g., diabetics, apo E2 people, those with familial hypertriglyceridemia, are intolerant to even this amount and do better with less than 30 grams per day. Then there are the genetically gifted from a carbohydrate perspective, people who can tolerate 50-60 grams, occasionally somewhat more.
People will sometimes say things like “You don’t know what the hell you’re talking about because I eat 200 grams carbohydrate per day and I’m normal weight and have perfect blood sugar and lipids.” As in many things, the crude measures made are falsely reassuring. Glycation, for instance, from postprandial blood sugars of “only” 140 mg/dl–typical after, say, unsweetened oatmeal–still works its unhealthy magic and will lead long-term to cataracts, arthritis, and other conditions.
Humans were not meant to consume an endless supply of readily-digestible carbohydrates. Counting carbohydrates is another way to “tighten up” a carbohydrate restriction.       

Clear for me that I need to stay where I should!

A good example is today. Still recovering from surgery, had a visit to the Doc's to check up on results (very good!), clean out my nose at the sites with stitches, etc. Afterward, my wife and I went to a great breakfast restaurant. I had two fried eggs, two slices of bacon, about a half portion of hash browns, and a serving of strawberries. One hour later, blood sugar was 144. Not something I should do! But I'm willing to bend a bit around this kind of illness and stress. But tonight I'll be back on low carbs--and hopefully blood sugar in the 95-105 range.