Cats can eat peanuts. Peanuts contain protein, vitamins, zinc, and other nutrients, which can supplement a cat's nutrition, make their skin shinier, and clean their mouth, helping to prevent bad breath. However, they shouldn't eat too many. Cats have delicate digestive systems, and large amounts of peanuts are difficult to digest, easily leading to diarrhea, vomiting, and other adverse symptoms. Therefore, peanuts should be fed to cats sparingly. 
Precautions for cats eating peanuts:
1. Owners can cook peanuts before feeding them to their cats. Cooked peanuts are easy to digest and will not irritate the cat's stomach.
2. Do not add any seasonings during the peanut boiling process, as this may increase the burden on the cat's kidneys and affect the cat's health.
3. It is best to crush the peanuts before feeding them to your cat to avoid choking on whole peanuts.
