This was a huge study. More than 7,000 people were randomly assigned to one of three diets. Often in diet studies, researchers will look at changes in blood pressure or cholesterol, but what's significant here is that instead they looked at numbers of heart attacks, stroke and deaths among participants. "At the end of the day, that is what really matters," says a spokesperson for the American Heart Association.
Quick Read: Mediterranean Diet Can Cut Heart Disease, Study Finds
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