Using the glycemic index is easy: choose foods in the low GI category instead of those in the high GI category (see below), and go easy on those in between. Low glycemic index (GI of 55 or less): Most fruits and vegetables, beans, minimally processed grains, pasta, low-fat dairy foods, and nuts. Moderate glycemic index (GI 56 to 69): White and sweet potatoes, corn, white rice,, breakfast cereals such as Cream of Wheat and Mini Wheats. High glycemic index (GI of 70 or higher): White bread, rice cakes, most crackers, bagels, cakes, doughnuts, croissants, fried foods, most packaged breakfast cereals....