I have had cats and dogs for years, and all of them have been spayed or neutered. I’ve noticed that they — and my friends’ sterilized pets — are almost all overweight, whereas friends’ dogs that are not sterilized usually remain slim. Is it true that spayed and neutered pets are heavier than sterilized pets? If so, why?
ASK THE VET: High fiber, protein diet helps keep spayed, neutered pets from growing fat
