Moderate Coffee Drinkers Have Healthier Hearts - Food Product ...

BOSTON?Individuals who drink two 8-ounce American servings of coffee day have an 11% reduced risk of heart disease compared to those who don?t drink coffee , according to a new study published online in the journal Circulation Heart Failure. The findings also suggest protective effects decrease with increased coffee consumption.

The findings suggest reevaluating current American Heart Association (AHA) heart failure prevention guidelines that warn against habitual coffee consumption. Researchers at Beth Israel Deaconess Medical Center who conducted the study suggest shifting the conversation from a definitive yes or no, to a question of how much.

?Our results did show a possible benefit, but like with so many other things we consume, it really depends on how much coffee you drink," says lead author Elizabeth Mostofsky, MPH, ScD, a post-doctoral fellow in the cardiovascular epidemiological unit at BIDMC. ?And compared with no consumption, the strongest protection we observed was at about four European, or two 8-ounce American, servings of coffee per day."

The researchers analyzed data from five previous studies?four conducted in Sweden, one in Finland?that examined the association between coffee consumption and heart failure. The self-reported data came from 140,220 participants and involved 6,522 heart failure events.

They found a ?statistically significant J-shaped relationship" between habitual coffee consumption and heart failure, where protective benefits begin to increase with consumption maxing out at two 8-ounce American servings a day. Protection slowly decreases the more coffee is consumed until at five cups, there is no benefit and at more than five cups a day, there may be potential for harm.

While it is unclear why moderate coffee consumption provides protection from heart failure, the researchers said part of the answer may lie in the intersection between regular coffee drinking and two of the strongest risk factors for heart failure?diabetes and elevated blood pressure.

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