Independent studies have found that like alcohol, grape juice can reduce the risk of blood clots and prevent LDL (â??badâ? cholesterol) from sticking to coronary arteries, among other cardiac benefits. One, conducted by scientists at the University of Wisconsin and published in the journal Circulation, looked at the effects of two servings of Concord grape juice a day in 15 people with coronary artery disease. After two weeks, the subjects had improved blood flow and reduced oxidation of LDL. Oxidized LDL can damage arteries.
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