Your large breed senior dog is one-of-a-kind… that’s why IAMS makes healthy aging dog food that’s just as unique as they are. IAMS PROACTIVE HEALTH Healthy Aging Adult Large Breed Dry Dog Food with Real Chicken was created to meet the specific wellness and nutritional needs of your older big dog. With real, farm-raised chicken as the first ingredient, this dry dog food is formulated to support healthy bones and joint health in canines with a balance of key nutrients formulated for large breed senior dogs. A blend of fiber and prebiotics promotes healthy digestion. Plus, the tasty dog kibble supports a strong immune system with antioxidants for optimal health. When you feed your mature large dog IAMS dry food, you can feel good knowing they’re getting the nutrition they need to bring out their unique best.