Natural Balance® L.I.D. Limited Ingredient Diets® Sweet Potato & Venison Formula is a proven formula for dogs with allergies based on our unique blend of a premium protein and carbohydrate not commonly found in dog foods. No grains such as wheat, barley, rice, or corn. Some dogs may be highly sensitive to commonly used proteins, carbohydrates and food additives in their diet. Allergic reactions can lead to irritable bowel, upset stomach, and a number of skin problems. Natural Balance® has created Sweet Potato & Venison Formula for dogs with these food allergies.