Iams Multi-Cat nourishes adult cats of all shapes and sizes. Formulated specifically for multi-cat households, Iams Multi-Cat Formula helps all your adult cats maintain proper body condition, without compromising on meeting their individual nutritional needs. For larger cats that tend to gain weight, L-Carnitine is a proven fat burner, while the addition of Vitamin A can help lower the risk of gaining extra weight in the first place. Iams have also included high levels of protein to help both heavy and trim cats maintain lean muscle mass and a healthy body condition. Plus, the patent-pending fibre system helps reduce the likelihood of hairball formation for smooth digestive function, and optimal colon health. For adult cats of 1 year old or above.