No. Macadamia nuts are a known toxin for pets and should be kept away from cats. They cause weakness and other reactions in dogs at small doses, and because cats are small and the exact feline risk is unclear, the safe approach is zero macadamias.
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Danger — keep macadamias away from petsTreat it as a poisoning risk
Can cats eat macadamia nuts? 🥜
No. Macadamia nuts are a known toxin for pets and should be kept away from cats. They cause weakness and other reactions in dogs at small doses, and because cats are small and the exact feline risk is unclear, the safe approach is zero macadamias.
Source-linked record · Last reviewed July 17, 2026 · Not veterinary advice
Why this answer
Macadamia nuts contain an as-yet-unidentified toxin that causes weakness, tremors, and fever in dogs even at low doses. The effect on cats is less documented, but the nuts are also very high in fat, which can trigger stomach upset or pancreatitis, and their size makes them a choking risk for a small mouth.
Watch for
Weakness, especially in the hind legs
Tremors or shaking
Vomiting
Lethargy
Fever or wobbly walking in more serious cases
How much is okay
None — do not offer macadamia nuts, and keep cookies, trail mixes, and bark containing them out of reach.
Keep it away
Store macadamia nuts in sealed jars, not open bowls on the counter.
Keep baked goods and candy made with macadamias away from cats.
Sweep up any dropped nuts, since one can be enough to cause signs.
Sources and evidence notes (3)
People Foods to Avoid Feeding Your Pets
ASPCA Animal Poison Control Center — Multi-species veterinary toxicology list covering alcohol, chocolate, caffeine, citrus, coconut, grapes and raisins, macadamia nuts, milk and dairy, nuts, onions, garlic and chives, raw meat and eggs, salty snacks, xylitol, and yeast dough.
Food Hazards
Merck Veterinary Manual — Veterinary toxicology reference section on human-food hazards in companion animals, including bread dough, chocolate, ethanol, grapes and raisins, macadamia nuts, xylitol, and Allium species.
Poison List
Pet Poison Helpline — Veterinarian-maintained toxin database for dogs and cats, reachable at (855) 764-7661, with per-substance toxicity levels, signs, and species notes.
Answer card
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Remove access. Take the food away and move your cat to another room.
Note the facts. What was it, roughly how much is missing, and when? Keep the packaging.
Call before symptoms. For chocolate, onion, garlic, grapes, raisins, alcohol, or anything sugar-free (xylitol), call a hotline or your veterinarian now — early treatment is easier and cheaper.
Never do this
Do not induce vomiting, feed milk, salt, or oil, or wait overnight to "see how it goes". Signs of chocolate or Allium poisoning can take hours to days to appear.
Go to an emergency vet immediately if
Your cat is collapsing, twitching or seizing, struggling to breathe, drooling heavily, vomiting repeatedly, or wobbly on their feet.
Outside the US? Call your local emergency veterinary clinic — keep the number saved in your phone.
Effective: July 17, 2026
Can Cats Eat It? provides general educational information for cat owners. It is not veterinary, diagnostic, treatment, or emergency advice.
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