Do cats and dogs really need to be spayed or neutered?” It’s one of the most frequent questions pet owners ask. Spay and neuter procedures go far beyond birth control—they are closely tied to better behavior, longer lifespans, and overall well-being. But surgery is only the first step. Lasting health depends on attentive post-operative care and the right nutritional support. Without it, pets may face higher risks of metabolic imbalances and chronic conditions. In this article, we’ll cover why and when spaying or neutering is truly necessary, how to prepare before and after surgery, a complete guide to operative care, and the common causes of slowed metabolism after the procedure—along with practical nutrition tips to help your furry companions stay healthy for years to come.