Sourced from: Infinite Health Blog, by Dr. Davis,
originally posted on the Wheat Belly Blog: 2012-03-27
Let’s get high
Some things in life are best kept to a minimum:
war, crime, debt, rap music, and . . . insulin.
High levels of
insulin–“hyperinsulinemia”–is among the
fundamental steps that lead to so-called resistance to
insulin that, in turn, leads to the cascade of events resulting
in visceral fat accumulation, i.e., deep abdominal fat that encircles
organs and is a virtual factory for inflammatory signals. Foods that
trigger insulin to high levels thereby can be expected to contribute
most to growing that belly hanging over your belt.
Below is a graph of blood insulin responses
after oral glucose, white bread, whole wheat bread, and bread made
from a finely-ground flour that the investigators called
“ultra-fine-ground whole-grain wheat flour.” This was
done by a group at the USDA to study whether the particle size of
wheat made any difference on blood sugar, insulin, and other measures,
but I think it demonstrates something different.
Here’s the effect of these
4 challenge foods on insulin:
(possibly Supplemental Figure S1 or S2,
but paper is now pay-walled,
with Supplements inaccessible)
From Behall et al 1999. Full text [no longer] here (http://www.jacn.org/content/18/6/591.long).
It might have been: The Effect of Particle Size of Whole-Grain Flour on Plasma Glucose,
Insulin, Glucagon and Thyroid-Stimulating Hormone in Humans
Note that all 4 challenge foods increased insulin
approximately four-fold–400%. That’s an awful
lot. But did you notice what food increased insulin the most?
Yup, whole wheat bread, even without the fine-grind.
Eat wheat-containing grains for breakfast, lunch,
dinner, and snacks and guess what? You’ll have sky-high insulin levels
triggered repeatedly throughout the day. Given a few years of day-in,
day-out high insulin and you will grow this collection of visceral fat I
call a “wheat belly.”