Cats can technically eat plain, unsalted peanuts in very limited amounts, but they are not a recommended or nutritious part of a cat’s diet. Here’s the key guidance. What to know

• Safety: Plain unsalted peanuts with shells removed are the safest option if a cat happens to grab one. Peanuts with flavorings, added salt, sugar, chocolate, or coatings (honey, yogurt, spicy, etc.) should be avoided, as these can be harmful or toxic to cats. The shells can pose a choking or intestinal blockage risk if ingested.

• Nutrition: Cats are obligate carnivores and require high-quality animal protein. Peanuts are high in fat and calories but do not provide essential feline nutrients in a form that substitutes for a complete diet. Regular peanut consumption can contribute to weight gain and associated health issues like diabetes or pancreatitis in some cats.

• Allergies and digestion: Some cats may have or develop allergic or adverse digestive reactions to peanuts. If a cat shows vomiting, diarrhea, itching, or signs of distress after exposure, discontinue and consult a vet.

• Practical stance: Many veterinarians and reputable pet-health sources recommend keeping peanuts as an occasional, tiny treat only, and ideally not part of the daily diet. Using such treats sparingly reduces risk of obesity and avoids nutritional imbalance.

What to do if your cat eats peanuts

• If it’s a plain, unsalted peanut with the shell removed and only one or two at most, it’s unlikely to cause serious harm in a healthy adult cat, but monitor for any digestive upset or unusual behavior. Do not offer peanuts regularly.

• If the peanut is salted, seasoned, chocolate-covered, or if multiple peanuts are consumed, contact your veterinarian for guidance, especially if your cat has any preexisting health conditions.

Bottom line

• Peanuts are not toxic in small amounts when plain and unsalted with shells removed, but they are not a nutritious or recommended food for cats. Use only as a rare, tiny treat if you choose to offer one, and prioritize a balanced cat-specific diet.

If you’d like, I can summarize guidance from a few veterinary sources or tailor tips to your cat’s age, weight, and health status.