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Can Cats Eat nuts?

The short answer for Cats: Many nuts are high in fat and some are toxic: macadamia nuts can cause weakness and tremors in dogs; walnuts may contain aflatoxins; almonds are hard to digest. Because the type of nut is often unknown, feeding nuts is risky for both dogs and cats.

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Toxic or dangerous

NO — do not feed — nuts for Cats

What to do if your pet ate it

Contact your vet or a poison line right away, report how much nuts was eaten and your pet's weight, and keep any packaging or leftovers. Do not induce vomiting unless your vet tells you to.

Signs to watch for

  • Vomiting and diarrhoea
  • Lethargy and weakness
  • Loss of appetite
  • Severe: tremors, breathing trouble, collapse

If your pet shows vomiting, lethargy or any unusual behaviour after eating nuts, go to the nearest emergency vet immediately.

Dogs and cats carry the same rating (Do not feed), so the notes below hold for either pet.

Other foods that are toxic or dangerous

The full A–Z food list groups every food by verdict for each species.

Why these cautions matter

Macadamia nuts bring weakness and tremors to dogs within hours. Oddly, the mechanism behind it is still not pinned down.

Rich, fatty food is the classic trigger for pancreatitis, a painful inflammation of the pancreas that usually needs veterinary treatment rather than rest alone.

Stone-fruit pits and some seeds release cyanide when crushed, and quite apart from that they are a choking and blockage hazard.

Frequently asked questions

Can cats eat nuts?

NO — do not feed. Many nuts are high in fat and some are toxic: macadamia nuts can cause weakness and tremors in dogs; walnuts may contain aflatoxins; almonds are hard to digest. Because the type of nut is often unknown, feeding nuts is risky for both dogs and cats.

What if my cat already ate nuts?

Call your vet or a poison line now with the amount of nuts eaten and your cat's weight, and do not induce vomiting unless a vet tells you to. If nuts was eaten and you then see vomiting, lethargy, tremors or breathing changes, go straight to the nearest emergency clinic.

Is there a safe amount of nuts for cats?

There is no accepted safe dose of nuts for cats; it is classed as toxic or dangerous, and reactions vary with the individual animal, so it is not something to feed at any amount.

How often can cats have nuts?

nuts is not something to feed at any interval; it stays off the menu entirely.

What are safer treats than nuts for cats?

Pick from the safe list instead — Cardamom or xanthan gum carry none of the risk that nuts does, and they work better as an everyday treat.

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How about Dogs eating nuts? Toxic or dangerous — NO — do not feed