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Health News

Coffee Reduces Diabetes Risk

by Wellness Letter  

Research has fairly consistently linked coffee consumption (regular or decaf) to a reduced risk of type 2 diabetes, according to a symposium report from the nonprofit Institute for Scientific Information on Coffee.

Among the research cited is a 2018 analysis of 30 studies involving more than a million people, published in Nutrition Reviews, which found that drinking three or four cups of coffee a day is associated with a 20 percent lower risk of developing diabetes, compared to no coffee. The risk decreased 6 percent for each daily cup of coffee.

The researchers proposed a variety of mechanisms by which bioactive compounds in coffee may help reduce diabetes risk, notably by enhancing insulin sensitivity, having antioxidant or anti-inflammatory effects, increasing resting metabolic rate slightly (and thus weight loss), and by altering the gut microbiota (intestinal microorganisms).

This article first appeared in the UC Berkeley Wellness Letter.

Also see Coffee: A Stimulating Friend of Millions.