1+ years. Formulated to gradually return your dog to a healthier weight (16% less fat than Iams Chunks). Select natural ingredients with added vitamins, minerals, and amino acids. No fillers or artificial preservatives. Iams nutrition proactively nourishes your dog to help keep him at his best. Healthy Weight: Formulated with l-carnitine for healthy weight. Strong, Firm Muscles: Builds strong, firm muscles with protein sourced from chicken and egg. Healthy Heart: Nourishes the heart with 7 essential nutrients. Strong Immune System: Enriched with antioxidants to help maintain a strong immune system. Healthy Teeth: Crunchy kibbles scrub your dog's teeth with every bite, to help reduce plaque and tartar build up that can lead to bad breath. Iams ProActive Health Weight Control Formula is formulated to meet the nutritional levels established by the AAFCO Dog Food Nutritional Profiles for Maintenance. Made in the USA.