FILE - In this Thursday Jan. 17, 2013 file photo, a woman buys fruit at a market in Barcelona, Spain. Mediterranean diets have long been touted as heart-healthy, but that's based on observational studies. Now, one of the longest and most scientific tests suggests this style of eating can cut the chance of suffering heart-related problems, especially strokes, in older people at high risk of them. The study lasted five years and involved about 7,500 people in Spain. Results were published online Monday, Feb. 25, 2013 by the New England Journal of Medicine. (AP Photo/Emilio Morenatti)