Designed for dogs ages 1 to 24 months and up to 90 lb. at maturity. Iams concentrated nutrition proactively nourishes your large-breed puppy and helps keep him at his best. Natural fish oils with DHA (Docosahexaenoic Acid), a nutrient vital for optimal brain development, to help promote smarter more trainable puppies. Protein sourced from chicken and egg helps build strong, firm muscles. 7 essential nutrients nourish the heart while essential minerals promote strong teeth and bones, and antioxidants help maintain a strong immune system. A high-quality protein with no fillers or artificial preservatives, Iams is gentle on the digestive system. Fuel your puppy's healthy development with 100% complete and balanced nutrition that's vet recommended.