Researchers from the Johns Hopkins Bloomberg School of Public Health report that drinking four or more cups of coffee per day could cut the risk of developing type-2 diabetes by over 23 percent.
The study, of more than 12,000 men and women looked at coffee and sweetened beverage consumption and the risk of diabetes. While no association was found between sweetened beverages and type 2 diabetes, there was a significant protective effect observed in coffee drinkers.
Researchers report in the American Journal of Epidemiology that consumption of at least four cups of coffee per day was associated with a 23 percent lower risk of developing type 2 diabetes in men, compared to men who never drank coffee. Similar intakes were associated with an 11 percent reduction of type 2 diabetes in women.
It is not clear if caffeine or another compound in coffee is responsible for the protective effect.
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