Veterinarians recommend IAMS. IAMS Proactive Health Smart Puppy 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). This dog food IAMS recipe delivers the Proactive 5 health benefits that focus on healthy muscles, energy, digestion, immune system, and skin and coat. Formulated with essential nutrients to support healthy bones and joints, the dog dry food kibble helps ensure that your puppy has a strong foundation for life. Made with Omega-3 DHA for smarter, more trainable puppies, the recipe supports cognitive development during this crucial growth stage. The optimal ratio of omega-6 and 3 fatty acids aids healthy skin and coat so your puppy looks and feels great. Enriched with essential antioxidants, the pet food helps puppies develop a strong immune system