There are a few reasons why your cat’s poop might smell really bad. First off, as cat waste ferments in their intestines, it naturally produces some odor, with sulfur-containing compounds being the main culprits behind the stink.
Secondly, since cats are strict carnivores, they lack the enzymes needed to digest starches, fibers, and fructose. If they eat foods like soybean meal or starchy stuff, it can lead to poor digestion and, as a result, really smelly waste. Many cat foods contain these ingredients, including sulfur amino acids, so it’s best to avoid feeding your cat soybean meal or starchy foods.
Lastly, if your cat’s poop is especially foul, it might be a sign of not drinking enough water, having an intestinal disease, or being infected with parasites. In such cases, it’s a good idea to scoop the litter and take your cat to a reputable vet for a check-up. Based on the diagnosis, the vet can recommend the right treatment.