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Caffeinated Coffee After High-Fat And High-Carb Meals Spells Trouble

April 1, 2011: 11:00 AM EST
Researchers at Canada’s University of Guelph have found that insulin has less of an effect on blood sugar levels after a high-fat meal followed by a high-carb meal and the problem is compounded when caffeinated coffee is added to the mix. According to the researchers, saturated fat interferes with insulin’s ability to clear sugars from the blood and distribute it to muscles. But when combined with caffeinated coffee, the negative impact doubles. Participants in the study consumed a beverage high in fat followed six hours later by a sugar drink. Blood sugar levels were 32 per cent higher after the fat and sugar beverages, but were 65 percent higher after intake of the fat, sugar and caffeinated coffee. “The results of the study are particularly important for people at risk for metabolic diseases and Type 2 diabetes,”  researchers said.
M.-S. Beaudoin, et al. , "An Oral Lipid Challenge and Acute Intake of Caffeinated Coffee Additively Decrease Glucose Tolerance in Healthy Men", Journal of Nutrition, April 01, 2011, © American Society for Nutrition
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