My dog ate macadamia nuts — what should I do?
Depends on the dose — check the calculator
What to do now
- Risk depends on how much macadamia your dog ate per kg of body weight (1 mg/kg → YELLOW, 2400 mg/kg → RED). Use the PawPanic calculator with your dog's weight and the amount.
- If you can't estimate the amount, assume the worst and call your vet or a poison hotline.
- Remove any remaining material and keep packaging/labels — the vet will want product names and amounts.
- Do not induce vomiting unless a vet or poison-control expert tells you to.
- Note the time it was eaten, roughly how much, and your dog's weight.
Why it's a problem
Unknown toxin; rarely fatal but causes alarming hind-limb weakness and fever.
Symptoms to watch for
Weakness (esp. hind legs), vomiting, tremors, fever.
When: Within 12 hours; resolves 24-48 h
⚠️ Cookies with chocolate or raisins: check those items too.
Frequently asked questions
Is macadamia nuts dangerous for dogs?
It depends on the amount and your dog's weight. Unknown toxin; rarely fatal but causes alarming hind-limb weakness and fever. Use the PawPanic calculator or call your vet.
What are the symptoms if my dog ate macadamia nuts?
Weakness (esp. hind legs), vomiting, tremors, fever.
How soon do symptoms appear after a dog eats macadamia nuts?
Within 12 hours; resolves 24-48 h
Is there anything else to know about macadamia nuts?
Cookies with chocolate or raisins: check those items too.
What should I do if my dog ate macadamia nuts?
If you can't estimate the amount, assume the worst and call your vet or a poison hotline.
Who can I call for help?
ASPCA Animal Poison Control (888) 426-4435 or Pet Poison Helpline (855) 764-7661, both 24/7 (fees may apply), or your nearest emergency vet.
Dose guidance
Merck: signs reported at 2.4 g/kg; vets decontaminate above 1-2 g/kg.
Sources
- Merck Veterinary Manual: Macadamia nut toxicosis
- Pet Poison Helpline: macadamia nuts
- ASPCA: People Foods to Avoid Feeding Your Pets
Last verified against these sources: 2026-10-13. Where sources disagree, PawPanic uses the more conservative guidance.
Also known as: macadamia, white chocolate macadamia cookie · Category: Food · Last reviewed 2026-10-14