By 2020, 1 in 2 Americans could have diabetes. But there's good news: what you eat can help prevent and manage diabetes. Eating well and moving more helps prevent the condition—even if your blood glucose level is already in what’s considered to be a “pre–diabetes” range. (And if you have diabetes already, a healthy diet helps keep glucose levels in check.) These 9 quick tips help you take control of your eating, one step at a time.