Neutered Weight Balance is a complete diet for adult male and female cats from neutering to 7 years old. It complements the Neutered dry foods (Young Male and Young Female) or can also be fed as a complete diet. As soon as 48 hours after surgery, changing hormones can cause a cats energy needs to decrease by 30% but also increases their appetite by 20%*. This can lead to significant weight gain. Neutered Weight Balance is specifically formulated to balance a cat’s energy needs.