Are Macadamia Nuts Toxic to Dogs?

If you’re like many pet owners, you count your pup as a member of the family. You naturally want to provide them with the best nutrition and care. Questions arise when you want to add new treats to your dog’s diet. Macadamia nuts are frequently questioned if they are suitable treats for dogs. Continue reading below to learn how macadamia nuts can affect dogs.

Macadamia Nuts: A Lethal Snack for Dogs

Humans can safely eat macadamia nuts, but the same does not apply to dogs. Macadamia nuts contain a toxin that negatively affects a dog’s nerve and muscle function. Unfortunately, the specific toxicity mechanism has yet to be discovered. Severe symptoms can develop if a large number of nuts are consumed. In some cases, the nut’s high oil content can cause pancreatitis in dogs.

Toxic Effects of Macadamia Nuts

Dogs can suffer from severe poisoning symptoms after consuming macadamia nuts. Ingesting as little as two grams of nuts per two pounds of a dog’s body weight can cause poisoning. Potential signs of toxicity include:

  • Lethargy
  • Increased body temperature
  • Vomiting
  • Tremors
  • Joint stiffness
  • Inability to walk


If you suspect that your dog has ingested macadamia nuts or is showing signs of macadamia nut toxicity, it is important to contact your veterinarian and Pet Poison Helpline at (855) 764-7661 immediately for proper guidance and treatment. Transport your dog to the veterinary clinic so they can receive treatment. Your veterinarian may induce vomiting and administer activated charcoal to bind the toxins. IV fluids may be administered for hydration and aid in flushing out the toxins from their system. Specific treatment is dependent on the amount of nuts consumed and your dog’s symptoms. In order to prevent nut poisoning, ensure that macadamia nuts and other potentially toxic snacks are securely stored out of reach from your dog.