The Royal Canin Sterilised Cat Food is specially for neutered cats (from 1 to 7 years old).
Royal Canin Sterilised 37 food also contains a carefully considered balance of minerals that help to support and maintain a healthy urinary system for your cat, while the increased protein content in this food helps to maintain your cat's healthy muscle mass.
Key Features:
Weight Management - Limits the risk of excess weight gain after neutering through a moderate level of fat and adequate daily rations.
Urinary Health - Contains a combination of minerals that help maintain your adult cat's urinary system.
High Protein Content - Maintains muscle mass thanks to a high protein content. 
L-carnitine - Nutrition formulated to support fat metabolism.