| Verdict for dogs | Toxic |
| Severity | 4 / 5 — Serious — call your vet or poison control today. |
| Safe amount | None |
| Category | Nuts |
| Source | ASPCA Animal Poison Control — Toxic and Non-Toxic Plants database; ASPCA Animal Poison Control — People Foods to Avoid Feeding Your Pets · reviewed 2026-08-07 · confidence: high |
The ASPCA lists macadamia nuts as toxic to dogs: weakness (especially in the back legs), incoordination, depression, vomiting, tremors and overheating. Signs usually appear within 12 hours and most dogs recover in 24–72 hours with veterinary care. The toxic principle is still unknown, so there is no known safe dose.
Call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 straight away. Tell them what your dog ate, roughly how much, and when, and take the packaging with you. Don't wait for symptoms — with several poisons the harm is done before a pet looks ill.
Never induce vomiting and never give any medicine unless a vet tells you to — it can do more damage than the poison. What we will and won't tell you.
There is no established finding for cats and macadamia nuts — ask your vet rather than assuming it's the same.
No — macadamia nuts are toxic to dogs. Call your vet or poison control today, even if your dog seems fine. The ASPCA lists macadamia nuts as toxic to dogs: weakness (especially in the back legs), incoordination, depression, vomiting, tremors and overheating. Signs usually appear within 12 hours and most dogs recover in 24–72 hours with veterinary care. The toxic principle is still unknown, so there is no known safe dose.
Watch for: Weakness, especially in the back legs; Wobbliness or inability to stand; Vomiting; Tremors and a raised body temperature — usually within 12 hours. Some signs lag by a day — call, don't wait.
More than a taste can cause real illness, and the risk rises with the amount and with a smaller pet. The safe amount is none — if your dog has had more, call your vet.