You have diabetes." This year 60,000 Canadians and 800,000 Americans will hear these words. They'll join an estimated 200 million people worldwide who already have it, including Mary Tyler Moore, Halle Barry, Elizabeth Taylor, Arthur Ashe, and Billy Jean King. Even Elvis Presley had it. If not controlled, diabetes can lead to coma, blindness, heart disease, stroke, amputation, kidney failure, and death. Why are there so many people with diabetes?