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Study: Why coffee reduces diabetes risk

Jan. 12, 2012 at 2:10 AM

WUHAN, China, Jan. 12 (UPI) -- Drinking several cups of coffee daily reduces type 2 diabetes risk because it inhibits a substance linked to the disease, scientists in China suggest.

Ling Zheng, Kun Huang and colleagues say previous studies show people who drink four or more cups of coffee daily have a 50 percent lower risk of type 2 diabetes. Every additional cup of coffee decreases the risk by almost 7 percent, the researchers said.

Scientists said the misfolding of the substance human islet amyloid polypeptide has been increasingly considered a pathogenic process in type 2 diabetes.

The study, published in the Journal of Agricultural & Food Chemistry, identified two categories of compounds in coffee that significantly inhibited human islet amyloid polypeptide.

The findings suggest this explains why coffee drinkers show a lower risk for developing diabetes.

"A beneficial effect may thus be expected for a regular coffee drinker," the researchers concluded.

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