The GI Diet (Glycemic Index Diet) is described as the easy and healthy way to permanent weight loss. According to promoters you can lose weight without going hungry, increase your energy and even lower your risk of heart disease, stroke and diabetes. Diets based on the GI index encourage you to eat plenty of foods with a low GI value (e.g. Roasted Peanuts, Low-fat Yoghurt, Cherries, Grapefruit and Red Lentils) and avoid those with a high GI value (e.g. Mashed potato, White bread, Watermelon and Bagels). This helps to prevent swings in your blood sugar, helping you feel fuller for longer and therefore avoid snacking and over eating.