It could be true–for men anyway. Researchers at Harvard’s T.H. Chan School of Public Health are claiming that men who consume just three or four weekly portions of foods and drinks containing flavonoids—which include berries, citrus fruits, and red wine—may reduce their risk of erectile dysfunction. The suggestion follows a recent study that was published in The American Journal of Clinical Nutrition. A Chan school news release reports that the study also found that men who were physically active in addition to consuming high amounts of flavonoids had the lowest risk of erectile dysfunction.