Veterinarians recommend IAMS. Every life stage for your dog is unique, and IAMS understands what is essential to your senior dog. IAMS Proactive Health Healthy Aging Large Breed Dry Dog Food With Real Chicken is made with real chicken as the #1 ingredient and contains no fillers or artificial flavors; ingredients are natural as defined by the Association of American Feed Control Officials (AAFCO). The Proactive 5 health benefits for IAMS Healthy Adult diets focus on five key health areas: healthy muscles, energy, digestion, immune system, and skin and coat. IAMS Healthy Aging Large Breed Dog Food is formulated with a carefully selected blend of natural fiber and prebiotics to support healthy digestion. Also, it contains an antioxidant blend that includes Vitamin E and Beta Carotene, which helps boost your older dog's immune response to healthy adult levels. With select healthy grains for healthy energy, IAMS Healthy Aging Large Breed Recipe helps your senior dog stay active and engaged. Made with balanced nutrients, including minerals, this dog food supports vital organs with essential nutrients and an antioxidant blend to help reduce oxidative stress. The crunchy kibble of this dog food recipe helps reduce plaque buildup that can lead to bad breath. DHA Gold promotes mental and visual sharpness, which is crucial for your senior dog. This IAMS Healthy Aging Large Breed dog food is also formulated with essential nutrients to support healthy bones & joints. Help your senior large breed dog thrive with the wholesome nutrition they need from IAMS Proactive Health Healthy Aging Large Breed Dry Dog Food.