1-12 months. Fish oil with DHA for smarter, more trainable puppies. Select natural ingredients with added vitamins, minerals, and amino acids. No fillers or artificial preservatives. Vet recommended. Iams nutrition proactively nourishes your puppy to help keep him at his best. Healthy Brain Development: Natural fish oils with DHA (docosahexaenoic acid) for smarter, more trainable puppies. Strong Immune System: Enriched with antioxidants to help build a strong immune system. Healthy Teeth and Bones: Fortified with essential minerals for strong teeth and bones. Easy Digestion: High quality protein to be gentle on your puppy's digestive system. Healthy Development: Fuels your puppy's health development with 100% complete and balanced nutrition. Pet food only. Made in the USA.