5. Lean Meat. Try lean chicken and meats that are unprocessed to prevent heart disease and diabetes. Red meat, although it has a bad reputation, has been shown by studies to have only a weak correlation with cancer for men and no correlation with cancer for women. Due to the high protein content of meat, it will keep you feeling full and will help you burn more calories per day. Your cravings will decrease by just adding a little protein at each meal.