The Med diet follows the traditional eating habits of Southern Europeans, who tend to be less at risk of developing obesity, cancer or heart disease than Americans. The diet emphasizes products like whole grains (yes to pasta!), olives, hummus, falafel and other Mediterranean delicacies. At dinner, a glass of red wine comes highly recommended. A study published in the BMC Medicine journal in 2016 estimated that between 2 and 14 percent of all stroke cases could be avoided just by following this highly effective program.