The Proactive 5 health benefits for IAMS Small Breed are scientifically designed to support five key areas of your dog’s health, keeping them full of life, for more life Supports Healthy Digestion: IAMS Proactive Health Small Breed Adult Dry Dog Food Chicken & Whole Grain Recipe features a tailored blend of natural fiber & prebiotics for healthy digestion and nutrient absorption Healthy Teeth: IAMS Dry Dog Food for small dogs includes crunchy kibbles that scrub your dog's teeth with every bite to help reduce plaque buildup which can lead to bad breath Healthy Bones & Joints: This small breed dog food is formulated with essential nutrients including optimal calcium levels and natural sources of glucosamine and chondroitin to support healthy bones & joints