Did you know losing weight can reverse the physical process that causes diabetes? Yes! Within days of losing weight, blood sugar improves, sometimes dramatically. Losing weight isn't easy, of course, but The Mayo Clinic Diabetes Diet is a different type of weight-loss program. Adapted from the #1 New York Times bestselling book, The Mayo Clinic Diet, this diabetes diet plan is a whole-lifestyle approach specifically designed to help you lose weight—and keep it off.