Can dogs eat macadamia nuts?
No. Macadamia nuts are toxic to dogs, and dogs are the only species known to get ill from them. Even a small amount can cause weakness, vomiting, trembling and a high temperature. Their high fat content can also trigger pancreatitis.
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Why
How macadamia nuts poison dogs is unknown, but they affect nerve and muscle function. Because they are very oily, some dogs also develop pancreatitis. Signs generally settle within 12–48 hours, but a vet should always be contacted.
Signs to watch for
- Muscle weakness
- Low energy, depression
- Vomiting
- Trembling
- High body temperature
- Wobbly walking
What to do
Contact your vet or a pet poison helpline right away. Note how many nuts were eaten, and whether they were coated in chocolate or mixed with other foods. Don't wait for signs.
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Are other nuts toxic too?
Macadamias are the toxic ones. Other nuts such as almonds, pecans and walnuts are very fatty and can cause vomiting, diarrhoea and possibly pancreatitis, so they are not a good treat either.
How long do signs last?
Signs generally resolve within 12–48 hours, but your vet should still be told straight away.
Related foods
All foods: What can dogs eat?Sources
- Macadamia Nuts Is Toxic To Dogs — Pet Poison Helpline
- Macadamia Nut Toxicosis in Dogs — Merck Veterinary Manual
- People Foods to Avoid Feeding Your Pets — ASPCA Animal Poison Control
- Which Human Foods Can Dogs Eat and Which Are Dangerous? — American Kennel Club (Updated Oct 21, 2026)
- Poisonous foods for dogs — Blue Cross
- Chocolate Are Toxic To Pets — Pet Poison Helpline
General information from the sources below, not reviewed by a vet and not a substitute for veterinary advice. When in doubt, call your vet.
How kids practise this in PetPrep
In PetPrep a child looks after a realistic dog: meals at the right times, water, walks and care. Knowing what is safe to share is part of being ready for a real pet.