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Better Lipid Effects from Quinoa

At the University of Milan, researchers compared the digestibility of various gluten-free foods in the lab (in vitro) and then with a group of healthy volunteers (in vivo). Their goal was to gauge the effect of the different foods on postprandial glucose and insulin response, as well as to measure triglycerides and free fatty acids after eating.  Quinoa stood out in the study, for producing lower free fatty acid levels and triglyceride concentrations than other GF pastas and breads studied.
European Journal of Nutrition, August 2004; 43 (4):198-204. Epub 2004 Jan 6.

Whole Grains Reduce Diabetes Risk

Dr. Nicola McKeown and fellow researchers at Tufts University found that people who eat three or more servings of whole grains a day, especially from high-fiber cereals, are less likely to develop insulin resistance and metabolic syndrome, common precursors of both Type 2 diabetes and cardiovascular disease.
Diabetes Care, February 2004; vol 27:538-546

Ancient Wheat Breads Digested Differently

Researchers at the Royal Veterinary and Agricultural University, in Frederiksberg, Denmark, compared three different loaves: einkorn bread made with honey-salt leavening; naturally-leavened einkorn bread made with crushed whole grains; and commercial yeast bread made with modern wheat. The naturally-leavened einkorn loaves significantly reduced the gastrointestinal response of GIP (glucose-dependent insulinotrophic polypeptide), a hormone important in controlling insulin secretion.
European Journal of Clinical Nutrition, October 2003; 57(1):1254-61

Eating Buckwheat Products Produces Lower GI Response

In a joint effort to determine the characteristics of buckwheat starch and its potential for a reduced metabolic response after meals, researchers from Slovenia and Sweden scored human test subject’s responses to an assortment of buckwheat products, including boiled buckwheat groats, breads baked with 30-70% buckwheat flour, and bread baked from buckwheat groats. The highest level of resistant starch was found in the boiled buckwheat groats, while the resistant starch levels in the buckwheat breads were significantly lower, depending on whether flour or grouts had been used. The conclusion? All buckwheat products scored significantly lower on the after-meal blood glucose tests, while also scoring higher in satiety, than the control group’s white wheat bread.
Journal of Agricultural and Food Chemistry, January 2001; 49(1):490–96. DOI: 10.1021/jf000779w

Wheat Flour Particle Size Doesn’t Affect Glycemic Response

USDA’s Agricultural Research Service, in Beltsville, MD, asked twenty-six healthy adults to consume four different samples: glucose solution, traditional white (refined) bread, conventional whole wheat bread, or bread made with ultra-fine whole wheat. The researchers then determined the subjects’ glycemic response, and determined that both whole wheat flours (conventional and ultra-fine) had similar effects. They concluded that “the particle size of whole grain wheat flour did not substantially affect glycemic responses.
Journal of the American College of Nutrition, December 1999; 18(6):591-7

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