Purina Pro Plan Sport Performance 30/20 Beef and Bison Formula Dry Dog Food gives your dog the fine-tuned nutrition. This high protein dog food provides concentrated nutrition to help optimize oxygen metabolism for increased endurance. As a novel protein dog food, it features beef as the first ingredient and bison. Because the high protein dog food has a ratio of 30 percent protein and 20 percent fat, it helps maintain energy and fuel metabolic needs at all stages of life. Live probiotics help aid digestive and immune health, and Omega-6 fatty acids and Vitamin A help nourish his skin and coat. It has amino acids to nourish and recover muscles including in the critical time after exercise, while EPA and glucosamine help with joint health and mobility. The antioxidant-rich formula offers 100 percent complete and balanced nutrition and helps nourish their immune system. As the official sport dog food of Ducks Unlimited, Pro Plan Sport offers your champion fine-tuned nutrition.