Nutro Ultra Large Breed Adult Dry Dog Food Nutro Ultra Large Breed Adult Dry Dog Food contains a combination of superfoods like avocado, sunflower and flaxseed that are rich in essential fatty acids for a healthy skin and a soft, shiny coat. Three high quality animal proteins provide amino acids that help promote lean muscle mass and glucosamine and chondroitin work together with superfoods like salmon and flaxseed to help your large breed dog maintain healthy joints throughout his life. Nutrients delivered from antioxidant rich ingredients like blueberries, pomegranate, cranberries and tomatoes build a strong immune system and salmon and oatmeal help maintain a healthy heart. Holistic superfoods combine in this Large Breed specific formula to provide your big dog with the extra nutrition he needs to live a long, healthy and active life. Three high quality proteins from chicken, lamb & salmon produce an irresistible flavor your dog will love..