Large breed puppies are best fed a diet rich in meat and protein to develop muscles, yet limited in carbohydrates and calories to manage body weight and reduces stress on developing bones and joints. That   s why ACANA Puppy Large Breed is loaded with free-run chicken, wild-caught flounder and nest-laid eggs in WholePrey    ratios. Free of grains and fast carbohydrates such as rice, tapioca or potato, ACANA is rich in meat proteins to promote your puppy   s peak development and conditioning. Biologically Appropriate    ACANA is guaranteed to keep your puppy happy and strong.