Avoid the foods that cause your blood sugar to rise quickly. These include all types of flour products: bread, spaghetti, macaroni, bagels, rolls, crackers, cookies and pretzels; refined corn products and white rice; and all sugar added products. Eat lots of vegetables, un-ground whole grains, beans, seeds and nuts. Eat fruits and root vegetables (potatoes, carrots and beets) only with other foods.