Real chicken is the number 1 ingredient in this dry puppy food to help provide the protein he needs for strong, growing muscles, including a healthy heart Purina ONE puppy food made with DHA, a nutrient found in mothers' milk, to support vision and brain development and four antioxidant sources for immune support for dogs Purina large breed dry puppy food with high protein and glucosamine for dogs helps maintain an appropriate growth rate and supports dog joint health Deliciously crunchy bites and tender meaty morsels deliver great taste in this Purina ONE dry dog food for large breed puppies made with no artificial flavors or preservatives Crafted in Purina-owned, U.S. facilities with a SmartBlend of high-quality ingredients, including omega-6 fatty acids, vitamins and minerals to support a shiny, healthy skin and coat for dogs