(Voice of America) Researchers have known for some time that chocolate - especially dark chocolate - is good for the heart. Now, they know why.
Besides tasting good, researchers found dark chocolate is protective against heart disease in two ways; it restores flexibility to stiffening arteries and prevents white blood cells from sticking to the insides of blood vessel walls. Both conditions can lead to the formation of plaque, which blocks arteries, causing heart disease.
The findings were made by Dutch researchers in a study of 44 middle-aged, overweight men who ate 70 grams of both dark and milk chocolate per day over two periods of four weeks.
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