Summarize this article in one sentence.
Ferret food can be purchased at your local pet store. Look for a food that lists a lean meat, such as chicken, as the first ingredient. Avoid food that contains a high amount of fat, grains, vegetables, or fruits. Feeding your ferret the right food can result in less smelly stools.   Foods that contain sugar or corn products should also be avoided. They often cause digestive upset and offer no nutritional benefits. Some people feed their ferrets fish since it is a lean meat. But, it can lead to odorous stools. If your ferret has changed its activity level or seems lethargic, then make a vet appointment. The same thing goes if your ferret is no longer eating or looks unhealthy. Even if your ferret is healthy you should still make yearly vet appointments. For example, anal gland blockages or adrenal disease can increase your ferret’s odor. Both conditions are treatable with prescription medication. Many vets now consider de-scenting surgery to be a cosmetic procedure. The surgery itself can also be painful and present potential complications. Your vet will usually only suggest surgery if your ferret’s glands are infected or another problem arises.

Summary:
Feed your ferret a high-protein diet. Talk to your vet if you are concerned about a potential health problem. Consider a scent gland surgery only in the most extreme situations.