“In a 10-year U.S. study, people who drank coffee regularly were less likely to die of many causes, including heart disease and diabetes, than those who didn’t drink coffee at all.”
“The more coffee study participants consumed, the lower their risk of dying, and decaf drinkers showed a similar pattern.”
“The risk of death was lowest for those who drank four to five cups of coffee per day. A similar association was seen among drinkers of decaffeinated coffee as well.”
“Coffee drinkers had a reduced risk of death from heart disease, chronic respiratory diseases, diabetes, pneumonia and influenza and suicide, but not cancer.”
“People who consumed two to three cups of coffee per day had approximately an 18 percent lower risk death during follow-up compared to those who reported drinking no coffee, she said. Drinking up to five cups per day, or 400 milligrams of caffeine per day, is not associated with any long-term health risks.”
(http://www.reuters.com/article/us-health-coffee-mortality-idUSKBN0U027D20151217)
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