Some dogs just seem to be born as natural athletes. Other dogs work long and hard to develop their endurance and skill. Specifically formulated with optimal levels of protein and fat to fuel your hard-working dog. Designed to meet the needs of growing puppies and pregnant or nursing adult dogs, and all the nutritional needs of your program. No corn, no wheat. Contains glucosamine and chondroitin. Crunchy kibble helps clean teeth and reduce plaque.