Medium-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 a wholesome puppy food that's formulated for your medium breed puppy's healthy growth and development. Clinically proven antioxidants, including vitamins E and C, help support the healthy development of immune systems. The puppy kibble is enriched with DHA, an omega-3 fatty acid that's scientifically proven to help support your puppy's brain development. And a combination of prebiotics and highly digestible proteins helps promote a healthy balance of intestinal bacteria for digestive health and optimal stool quality. Keep your medium breed dog on this dry puppy dog food for 12 months so they have a strong and healthy start. With over 50 years of scientific research and observation, Royal Canin continues to deliver targeted nutrition to feed every pet's magnificence. Not satisfied? Then neither are we. Our formulas are 100% satisfaction guaranteed. (Just contact us for more details.)