(BOSTON) -- For years we've heard about the health benefits of dark chocolate. Now researchers have taken another look at the role of cocoa on heart health and presented their study to a conference at Harvard Medical School.
Chocolate comes from the cocoa plant and contains compounds known as flavonoids, which not only act as antioxidants but are known to have cardiovascular benefits.
Researchers reviewed 21 studies on the effects of cocoa on the the heart. The studies were short term and the more than 2,500 participants consumed sugar-free dark chocolate.
The authors found that eating chocolate lowered blood pressure and improved the ability of insulin to lower blood sugar "without weight gain."
They concluded chocolate is good for the heart. However, they didn't say how much is needed or for how long one should enjoy its benefits.
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