Diamond Naturals Extreme Athlete Chicken & Rice Formula for Dogs is specifically formulated with optimal levels of protein and fat to fuel your hard-working dog. Extreme Athlete is designed to meet the needs of growing puppies and pregnant or nursing adult dogs, and all the nutritional needs of hard working dogs. Contains no by-products, corn, or wheat. Includes glucosamine, chondroitin, vitamins, and minerals. 40 lb. bag.