Cats Sterilized From 6 Months To 6 Years Of Age. Hill'S Neuteredcat Young Adult Has Been Formulated Using Our Unique Wmf (Weight Management Formulation) Formulation: It Contains Just The Right Amount Of Fat And Calories To Keep Your Cat Fit After Sterilization. Key Benefits Reduced Fat Levels To Help Avoid Weight Gain. Contains L-Carnitine To Increase The Conversion Of Fat Into Energy And Limit Its Accumulation. Superior Antioxidant Formula To Help Reduce Free Radicals Helping Growth And The Immune System.