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How Dark Chocolate, Not Milk Chocolate, May Help Blood Flow

Researchers say the polyphenols in dark chocolate can help the body form more nitric oxide, a compound that causes blood vessels to dilate and blood to flow more easily. (iStockphoto)
Researchers say the polyphenols in dark chocolate can help the body form more nitric oxide, a compound that causes blood vessels to dilate and blood to flow more easily. (iStockphoto)

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