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Can dogs eat macadamia nuts?

Last updated 2026-05-08 · Sourced from ASPCA & Merck Veterinary Manual

No — avoid
Macadamia nuts are specifically toxic to dogs — mechanism unclear but well-documented. As few as 2.4 grams per kg body weight cause symptoms.

The short answer

No — avoid — dogs should never eat macadamia nuts. toxic Round buttery tree nut, often in cookies.

Why it's dangerous

Macadamia nuts are specifically toxic to dogs — mechanism unclear but well-documented. As few as 2.4 grams per kg body weight cause symptoms.

Symptoms to watch for

Weakness (especially hind legs), tremors, vomiting, hyperthermia, depression. Symptoms within 12 hours.

What every dog owner should know

  • Macadamia cookies = double trouble (chocolate)
  • Symptoms usually resolve in 48 hrs but call vet
  • Just one handful can affect a small dog

What to do if your dog ate macadamia nuts

  1. Stay calm and assess how much was eaten and when.
  2. Call your vet or ASPCA Animal Poison Control at 888-426-4435 (consultation fee may apply).
  3. Alternatively, Pet Poison Helpline: 855-764-7661.
  4. Do not induce vomiting unless explicitly instructed by a vet.
  5. Have product packaging or the food itself ready to describe to the vet.
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Puppy safety

Macadamia Nuts is even more dangerous for puppies than adult dogs. Their smaller body weight means the same amount delivers a much higher toxic dose per pound. Their developing organs are also less able to process and clear toxins. If your puppy ate any amount of macadamia nuts, contact your vet immediately — don't wait for symptoms.

What to do if your dog ate macadamia nuts

  1. Don't wait for symptoms. Some toxic effects start hours later but treatment is most effective when given early.
  2. Call your vet or an animal poison control hotline now:
    • ASPCA Poison Control: (888) 426-4435 (fee may apply)
    • Pet Poison Helpline: (855) 764-7661
  3. Have these details ready: your pet's weight, the amount eaten, when it happened, and any symptoms you've noticed.
  4. Don't induce vomiting unless the vet specifically tells you to. Inducing vomiting at home can cause aspiration in some cases.
  5. Save the packaging or a sample of what was eaten — this helps the vet identify ingredients.
See full emergency guide

Safer alternatives to macadamia nuts

Looking for a safe treat? Here are vet-approved alternatives dogs can enjoy instead:

🌱
Chia Seeds
Yes — small amount
🌱
Flax Seeds
Yes — ground
🎃
Pumpkin Seeds
Yes — plain, shelled
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Peanuts (plain unsalted)
Plain unsalted, in moderation.
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Peanut Butter (xylitol-free)
Xylitol-free brands only — popular treat.

Frequently asked questions

Is macadamia nuts toxic to dogs?
Yes — Macadamia nuts are specifically toxic to dogs — mechanism unclear but well-documented. As few as 2.4 grams per kg body weight cause symptoms.
How much macadamia nuts is too much?
Any amount can be dangerous. Even small ingestions warrant a call to your veterinarian.
Can puppies eat macadamia nuts?
No — and even more dangerous than for adults due to lower body weight. Contact your vet immediately if a puppy eats any amount.
What are the symptoms of macadamia nuts poisoning in dogs?
Weakness (especially hind legs), tremors, vomiting, hyperthermia, depression. Symptoms within 12 hours.
What should I do if my dog ate macadamia nuts?
Call ASPCA Poison Control at (888) 426-4435 or your veterinarian immediately. Don't wait for symptoms.

Frequently asked questions

Can dogs eat macadamia nuts?
No — avoid. Macadamia nuts are specifically toxic to dogs — mechanism unclear but well-documented. As few as 2.4 grams per kg body weight cause symptoms.
What happens if a dog eats macadamia nuts?
Weakness (especially hind legs), tremors, vomiting, hyperthermia, depression. Symptoms within 12 hours.
Is macadamia nuts toxic to dogs?
Yes — macadamia nuts is toxic to dogs. Macadamia nuts are specifically toxic to dogs — mechanism unclear but well-documented. As few as 2.4 grams per kg body weight cause symptoms.
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