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Moderate coffee drinking lowers the risk of dying from heart disease and all cause mortality

Oct 15, 2014

Moderate coffee drinking lowers the risk of dying from heart disease and all cause mortality

     Researchers from the Institute of Environmental Medicine at Sweden’s world renowned Karolinska Institute combined the results of twenty-one prospective studies in a meta analysis to judge the safety and benefits of coffee consumption. The combined study population of 997,464 people followed from 7 to 23 years included 121,915 deaths. In comparison with people who didn’t drink coffee, those who consumed four cups a day had the greatest reductionof 16% in the risk of all-cause mortality. Those who drank three cups a day had a 21% reduction in cardiovascular mortality. Coffee did not protect from cancer mortality.

The authors remark that coffee’s phenolic compounds make the beverage a significant source of antioxidants that provide potential health benefits. They observe that studies have documented protective effects for coffee intake against the risk of Parkinson’s disease, gallstones, suicide, and elevations in markers of inflammation related to cardiovascular disease and cancer.

“Findings from this meta-analysis indicate that coffee consumption is inversely associated with all-cause and cardiovascular disease mortality,” they conclude. The results suggest that only moderate levels of coffee drinking may be needed to provide the greatest amount of protection against premature mortality. The results of this dose-response meta-analysis is published online on August 24, 2014 in the American Journal of Epidemiology.