Fine-tune your dog's nutrition with Purina Pro Plan Brand Dog Food PERFORMANCE 30/20 Chicken and Rice Formula dry dog food. Designed for highly active dogs, this high-protein dry dog food formula concentrates nutrition in ways that help optimize oxygen metabolism for increased endurance. This formula contains a blend of 30 percent protein and 20 percent fat to assist in caring for your dog's metabolic needs and help him maintain lean, strong muscles. Amino acids nourish your dog's muscles, especially in those critical moments after your dog has been working or training hard. Chicken as the first ingredient provides your dog with the protein and nutrients he needs for his active lifestyle, while EPA and glucosamine help support joint health and mobility. The antioxidant-rich dog dry food fuels your dog's body and nourishes his immune system. Provide your canine companion with 100 percent complete and balanced nutrition by giving him this Pro Plan dry dog food.