Royal Canin Weight Control Large Dog Dry Food 24.2 lbs Lots of quality, easy-to-digest protein that will keep your dog lean without upsetting his digestive system Added chondroitin and glucosamine, which are building blocks of healty joints L-carnitine to accelerate your dog's metabolism Blend of biotin, zinc, and linoleic acid to increase your pet's skin health and coat luster Low-calorie formula that promotes weight loss