Iams Premium Protection Mature Cat Food: * L-carnitine to help burn fat and keep older cats at a healthy weight * Higher levels of protein for muscle maintenance of older cats * Tailored 2-part fiber system, including prebiotics and beet pulp, for healthy digestion * 2x antioxidant and vitamin E to promote a strong, healthy immune system * Premium cat nutrition formulated to help maintain healthy joints * Contains natural sources of glucosamine and chondroitin sulfate