Nourishes the brain! Puppy: (1 - 24 months): 50 + lbs at maturity. Iams Large Breed: Specially formulated for large breed puppies. Bone & Joint Health. Optimal Growth Formula. Many essential vitamins & minerals like mother's milk. Animal feeding tests using Association of American Feed Control Officials procedures substantiate that Iams Puppy Large Breed Formula Dog Food provides complete and balanced nutrition for growth. Pet Food only. 5 Signs of Health in your Puppy: Healthy Development: 100% Complete & Balanced nutrition for Healthy Development. Bone & Joint Health: Specially formulated to help better build bones and joints. Healthy Growth Rate: Optimized balance of calcium and energy supports controlled growth. Immune System Health: Essential antioxidants help build a strong immune system. Digestive Care: Patented fiber source that's gentle on your puppy's sensitive digestive system and helps enhance your puppy's ability to absorb nutrients. As your puppy's needs change, so should your Iams formula. Iams Large Breed: For the special nutritional needs of dogs 50 + lbs. Iams Weight Control Large Breed: For healthy weight loss or weight management of dogs 50 + lbs. Animal feeding tests using Association of American Feed Control Officials procedures substantiate that Iams Puppy Large Breed Formula Dog Food provides complete and balanced nutrition for Growth.