Over the years, myths and misconceptions have arisen about certain foods and scary diseases. To make matters worse, false and undeserved claims often end up tainting the reputations of favorite foods, some of which turn out to be good for you. One large study, for instance, found that women who drank up to four cups of coffee a day cut their risk of diabetes by 47 percent.

Here’s the truth about some common—and stubborn—food myths.