Dan W
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- Jan 22, 2013
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Association of Coffee Drinking With Mortality by Genetic Variation in Caffeine Metabolism
I don't have access to the full text, but they say that results were also similar for instant, ground, and decaffeinated coffee.
Coffee drinking was inversely associated with mortality, including among those drinking 8 or more cups per day and those with genetic polymorphisms indicating slower or faster caffeine metabolism. These findings suggest the importance of noncaffeine constituents in the coffee-mortality association and provide further reassurance that coffee drinking can be a part of a healthy diet.
I don't have access to the full text, but they say that results were also similar for instant, ground, and decaffeinated coffee.