Royal Canin Size Health Nutrition Medium Puppy Dry Dog FoodMedium sized dogs are famous for their energy. As puppies, their little bodies are doing double duty: rapidly developing bone structure and natural defenses while playing hard all day. They need right sized nutrition to help them sustain this rapid growth period. Royal Canin Medium Puppy dry dog food is wholesome puppy food for a healthy start in your puppys life. An exclusive mix of antioxidants and minerals supports their developing immune systems