🐾 Fuel Their Future with Purina Pro Plan! DHA from fish oil for enhanced brain and vision development. Formulated for optimal growth in large breed puppies. Vitamin A and omega-6 fatty acids for a shiny coat. Glucosamine for strong joints and cartilage. Real chicken as the first ingredient for muscle development. Large breed support High protein content Brain development boost Purina Pro Plan Large Breed Dry Puppy Food is expertly crafted to support the healthy growth of large breed puppies. With real chicken as the primary ingredient, this high-protein formula also includes glucosamine for joint health, essential vitamins for skin and coat nourishment, and DHA for cognitive development.