Contains essential nutrients also found in Mother's Milk. Build: Digestive system, Bones & Joints, Healthy Immune System. Replenish: Vital organs including a healthy heart. Repair: Muscle cells. Healthy Morsels, soft & crunchy bits. 100% Complete & Balanced Nutrition that Builds, Replenishes, and Repairs Every Day. Your puppy isn't just growing. He's also depleting energy stores and causing wear and tear on muscles and joints just by being playful. the fact is, from the moment he's born and throughout this lifetime, his body is building, replenishing, and repairing itself 24 hours a day, 7 days a week. that's why we create the Purina Puppy Chow - Build, Replenish, Repair Philosophy - to provide your puppy with the smart nutrition he needs to optimize this ongoing lifelong process, so he stay vigorously healthy now and as an adult. Build: Bones & Joints: Contains a complex spectrum of essential nutrients needed for a puppy's proper growth, including the development of healthy bones and joints. Digestive System: Provides a well-balanced diet including amino acids and electrolytes to help a puppy's intestinal cells develop, so he can absorb the nutrients he needs. Healthy Immune System: Formulated with high-quality protein and a special antioxidant blend to help build and support a healthy immune system. Replenish: Vital Organs: Contains all the nutrients needed to replenish and support vital organs, including a healthy heart. Repair: Muscle Cells: Provides the amino acids and minerals needed to support a puppy's natural ability to repair and maintain healthy muscle cells. Chewy chunks and crunchy bits form corn, real beef and vegetables accents in Purina Puppy Chow healthy morsels deliver the extra nutrition puppies need during growth. This advanced formula goes beyond ordinary nutrition with carefully selected high-quality ingredients that help build, replenish and repair your puppy's body around the clock. 100% complete & balanced nutrition for your puppy’s first year, up to two years for large breeds. High-quality protein for strong muscles. Vegetable accents and added vitamins help support overall good health. Great taste encourages a healthy appetite.