Weight management : After neutering energy requirements of cats decrease. Sterilised 37 helps limit the risk of excess weight gain thanks to a moderate level of fat and adequate daily rations. Urinary health : Neutered cats have an increased risk of developing urinary stones. Sterilised 37 helps support a healthy urinary system by providing an adequate mineral balance. High protein content : After neutering cats tend to put on weight. Sterilised 37 helps maintain muscle mass thanks to a high protein content. Enriched with L-carnitine : L-carnitine is involved in fat metabolism.