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Can Dogs Eat Macadamia nuts?

The short answer for Dogs: Toxic to dogs — weakness, wobbliness and tremors within 12 hours. Usually recoverable, but call your vet.

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

Toxic or dangerous

NO — do not feed — Macadamia nuts for Dogs

What to do if your pet ate it

Contact your vet or a poison line right away, report how much Macadamia 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 Macadamia 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.

Frequently asked questions

Can dogs eat Macadamia nuts?

NO — do not feed. Toxic to dogs — weakness, wobbliness and tremors within 12 hours. Usually recoverable, but call your vet.

What if my dog already ate Macadamia nuts?

Call your vet or a poison line now with the amount of Macadamia nuts eaten and your dog's weight, and do not induce vomiting unless a vet tells you to. If Macadamia 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 Macadamia nuts for dogs?

There is no accepted safe dose of Macadamia nuts for dogs; 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 dogs have Macadamia nuts?

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

What are safer treats than Macadamia nuts for dogs?

Pick from the safe list instead — Oats & oatmeal or Pumpkin (plain) carry none of the risk that Macadamia nuts does, and they work better as an everyday treat.

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

See the related toxicity guide →

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