Dark Chocolate, Cocoa May Cut Blood Pressure in Overweight Adults

Study: Dark Chocolate, Cocoa May Cut Blood Pressure in Overweight Adults: WebMD
"July 11, 2008 -- Cocoa, either in a dark chocolate bar or as a hot drink, may reduce blood pressure in overweight adults...The researchers -- who included David L. Katz, MD, MPH, of the Yale Prevention Research Center -- gave some of the participants a dark chocolate bar containing 22 grams of cocoa. Other participants got a bar containing no cocoa...Before-and-after blood pressure and ultrasound tests showed better blood pressure and better blood vessel function after participants ate the dark chocolate bar, compared to the cocoa-free bar...Likewise, blood pressure and blood vessel function improved after participants drank two cups of cocoa, compared with drinking a beverage containing no cocoa...How the cocoa drink was sweetened mattered. When it contained sugar, blood pressure and blood vessel function didn't improve as much as when the cocoa was sugar-free..."

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