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Originally Posted by Steve Pavlina  Do you have any evidence that an all-raw, high-fruit, low-fat diet causes blood sugar problems? If so, please pass it along. I've found nothing on this so far aside from conjecture. |
Steve, the fructose causes less of a rise in blood glucose than sugar. Its glycemic index is 32 (where white bread = 100), while table sugar (sucrose) has a GI of 92.
Following is from:
Questions and Answers About Fructose
Even though commonly consumed sugars provide basically the same number of calories, they are metabolized and used by the body in different ways. For instance, glucose from dietary sources is digested, absorbed, transported to the liver, and released into the general blood stream. Many tissues take up glucose from the blood to use for energy; this process requires insulin. Fructose is predominantly metabolized in the liver, but unlike glucose it does not require insulin to be used by the body.
Here is from Nancy Appleton, the author of Lick the Sugar Habit (Garden City Park, N.Y.: Avery Publishing Group, 1996). Ms. Appleton writes on page 90 of her book:
Dr. J. Hallfrisch studied cholesterol and triglyceride levels and found that fructose, unfortunately, caused a general increase in both the total serum cholesterol level and the low-density lipoprotein fraction of cholesterol in most subjects. The triglyceride levels also rose significantly, especially in those persons whose blood sugar levels rise higher than normal when they eat sugar. It was concluded that high levels of dietary fructose can produce undesirable changes in blood lipid levels, which are associated with heart disease.
Subsequent studies support these findings. John P. Bantle et al., "Effects of dietary fructose on plasma lipids in healthy subjects," American Journal of Clinical Nutrition Vol. 72, November 2000, pp. 1128-1134, on-line at
Effects of dietary fructose on plasma lipids in healthy subjects -- Bantle et al. 72 (5): 1128 -- American Journal of Clinical Nutrition found that a diet high in fructose produced high fasting, postprandial, and daylong plasma triglyceride levels among men, but strangely not among women.
So it seems you should be watching your
cholesterol not your blood sugar levels.
Hope this helps...