At this point, you probably already know that the Mediterranean diet is good for your health. Research proves over and over again that people who put an emphasis on produce, fish, whole grains, and healthy fats not only weigh less, but also have a decreased risk for heart disease, depression, and dementia. So what are you waiting for? Here are the basics: Shop the market perimeter, eat seasonally, and break (whole-grain) bread with people who make you smile. Now for the nitty-gritty.