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BREAKING MEDICAL NEWS June 21, 2011

Glycemic Index of Foods Influences Weight Loss

June 21, 2011

Decreasing the intake of high-glycemic foods can help reduce body weight, according to a new article in the Journal of Nutrition. The glycemic index is a measure of how rapidly a given food releases sugar into the bloodstream. In a National Institutes of Health-funded study conducted by PCRM, 99 participants with type 2 diabetes were placed into either the vegan diet group or the 2003 American Diabetes Association (ADA) diet group. The vegan diet proved better at controlling blood glucose and cholesterol. After adjusting for various factors such as fiber, fat, and calorie intake, the glycemic index intake predicted weight loss, and weight loss, in turn, predicted lower hemoglobin A1C levels, a measure of sugar levels in the blood over time. The vegan diet group reduced glycemic index intake greater than the ADA diet group.

Turner-McGrievy GM, Jenkins DJ, Barnard ND, Cohen J, Gloede L, Green AA. Decreases in dietary glycemic index are related to weight loss among individuals following therapeutic diets for type 2 diabetes. J Nutr. In press.

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