Can Cats Eat Peanuts?

⚠️ In Moderation

✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit

⚠️ Educational info only. If your pet just ate something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.

Yes, one plain unsalted peanut occasionally — but nuts are not a cat treat worth keeping.

Why it’s a sometimes-food

Peanuts are not toxic to cats, but they are loaded with fat, and their usual snack form adds a heavy salt coating that feline kidneys handle poorly. As obligate carnivores, cats get nothing from a nut that their food does not already provide, and a whole peanut is hard work for small jaws.

How to serve it safely

One shelled, unsalted, plain peanut, crushed to prevent choking, on a rare occasion is the limit. Never salted, flavored or candied versions.

Warning signs to watch for

Salted or fatty peanuts can cause vomiting, diarrhea and unusual thirst; a whole nut can cause gagging or choking.

When to call the vet

Call your vet if a cat eats a handful of peanuts, especially salted ones, and shows repeated vomiting or lethargy.

Common questions

Can cats eat peanut shells?

No. Shells are fibrous, indigestible and can cause stomach upset or a blockage if swallowed.

More foods for cats

Salmon✅ SafeYes, when fully cooked and unseasoned. Salmon is a nutritious fish most cats enjoy.Tuna⚠️ In ModerationOccasional small amounts only — tuna should be a treat, never a meal.Cow’s Milk🚫 Not RecommendedBetter to skip it. Most adult cats are lactose intolerant and milk gives them stomach upset.Garlic☠️ ToxicNo. Garlic is poisonous to cats — even more potent per gram than onion.Cooked Eggs✅ SafeYes, fully cooked and plain. Eggs are a protein-rich treat cats usually enjoy.Cheese⚠️ In ModerationSmall bites are usually fine, but many cats cannot digest dairy well.

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away.