Showing posts with label Dr. William Davis. Show all posts
Showing posts with label Dr. William Davis. Show all posts

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.

Tuesday, August 2, 2011

When to measure blood sugar

Dr. William Davis' Heart Scan Blog is one of the better ones (I need to get a blogroll here soon).

I was wondering if measuring my blood sugar two hours later (as the ADA and the makers of my glucose monitor say) was correct--I hadn't gone back to check Dr. Bernstein's book, but remembered one hour as the significant time (and that's how I've been testing).

And so, along comes a post on Dr. Davis' site: "One hour blood sugar: Key to carbohydrate control and reversing diabetes." Just what I needed!

A bit of what he says:

Diabetics are instructed to monitor blood glucose first thing in the morning and two hours after eating. This helps determine whether blood sugar is controlled with medications like metformin, Januvia, Byetta injections, or insulin.
But that’s not how you use blood sugar to prevent or reverse diabetes. Two-hour blood sugars are also of no help in deciding whether you have halted glycation, or glucose modification of proteins the process that leads to cataracts, brittle cartilage and arthritis, oxidation of small LDL particles, atherosclerosis, kidney disease, etc.
So the key is to check one-hour after-eating (postprandial) blood sugars, a time when blood glucose peaks after consumption of carbohydrates.

Perfect for me right now.

He also mentions building your own peaking curve by testing every 15 minutes. I may try that a few times to see if my peak is different than just one hour.

But this is incredibly helpful.

As does Bernstein, he forcefully questions allowing blood sugar to go high:
I reject the insane notion that after-eating blood sugars of less than 200 mg/dl are acceptable, the value accepted widely as the cutoff for health. Blood sugars this high occurring with any regularity ensure cataracts, arthritis, and all the other consequences of cumulative glycation. I therefore aim to keep one-hour after-eating glucoses 100 mg/dl or less. If you start in a pre-diabetic or diabetic range of, say, 120 mg/dl, then I advise people to not allow blood glucose to go any higher. A pre-meal blood glucose of 120 mg/dl would therefore be followed by an after-eating blood glucose of no higher than 120 mg/dl.
More important advice for me to reinforce that I need to keep truly tight control over blood sugar, not what the ADA calls "tight" control!