For less active cats that enjoy a hearty cat food, there's IAMS PROACTIVE HEALTH OPTIMAL METABOLISM dry cat food. Formulated with L-carnitine to help burn fat and support a healthy metabolism, this diet cat food provides complete and balanced nutrition without the extra calories. IAMS cat food also features a tailored fiber blend, including prebiotics and beet pulp, to maximize nutrient absorption. Best of all, our wholesome cat food is enriched with antioxidants to promote a healthy immune system, contains 0% fillers and includes seven essential nutrients for a healthy heart.