Iams ProActive Health Dry Dog Food - Original Chunks Formula, 17.5lb Bag: * Iams nutrition proactively nourishes your dog to help him at his best. * Builds strong, firm muscles with protein sourced from chicken and egg. * Nourishes the heart with seven essential nutrients. * Enriched with antioxidants to help maintain a strong immune system. * Crunchy kibbles scrub your dog"s teeth with every bite to reduce plaque and tartar build-up that can lead to bad breath. * Gentle fiber source to support your dog"s ability to absorb nutrients.