Pro Plan Sport, 37.5 LB, All Life Stages Performance Dog Food, 30% Protein & 20% Fat, Chicken Based Formula Helps Optimize Oxygen Metabolism For Increased Endurance, Key Benefits Contains Antioxidants That Fight Free Radicals In Cells & Slow The Aging Process Ideal For Dogs That Exercise Every Day Whole Grains Give Complex Carbs For Energy Great Source Of Glucosamine For Pain Free Joints & Maximum Mobility.