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No, dogs should not eat macadamia nuts because they are toxic. Symptoms of toxicity can begin within 3 to 24 hours of ingestion, and may include tremors, muscle weakness, vomiting, and high body temperature. Dogs can recover within 48 hours, however, intravenous fluid and antiemetics can be used for treatment in severe cases.

Macadamia Nuts
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Dangerous: This food is generally considered a serious threat to the health and wellbeing of dogs. Please contact your vet, a veterinary hospital or pet poison control if you suspect your dog has eaten this food recently.

Food Safety Toxic even in small amounts
Dangerous Serving Dogs have shown symptoms of toxicosis from a serving of 1 nut per kg of body weight
Poisoning Symptoms Vomiting, tremors, muscle weakness, high body temperature, depression
Severe Poisoning Severe poisoning can need medical intervention in the form of administering intravenous fluids and antiemetics to stop vomiting
Every dog is different. For specific feeding guidelines, including quantities and beneficial foods that are best for your dog, please consult your vet.

How Many Macadamia Nuts Are Dangerous for Dogs?

According to clinical studies, even a small amount of macadamia nuts can cause toxicosis in dogs. Dogs have shown symptoms from a number as low as one nut per kg of body weight – meaning a 10 pound dog could show signs of toxicity from eating 4 macadamia nuts.

Why Can’t Dogs eat Macadamia Nuts?

The source of the toxicity in macadamia nuts is unknown. The nut is completely safe for humans but due to an unknown mechanism it results in several toxicity symptoms in dogs.

What to Do if Your Dog Ate Macadamia Nuts?

If your dog has eaten macadamia nuts, it will begin to show symptoms within 3 to 24 hours. Most dogs recover from the symptoms within 48 hours, however it best to contact your local veterinarian or the Animal Poison Control Center at 888-426-4435 for further guidance. Your dog may need medical assistance in cases where the symptoms are severe and can only be stopped through medical intervention.

Frequently Asked Questions

  • No, a dog cannot eat a single macadamia nut since even that has the ability to be toxic depending on the size of your dog.

  • Most dogs are expected to make a full recovery from the symptoms of macadamia nut toxicosis within 24-48 hours.

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About the Writer
Dr. Hillary Wolfe , Veterinarian & Certified Food Therapist

Dr. Wolfe holds a doctorate in veterinary medicine from Kansas State University and holds nutrition certifications from the NAVC and CIVT. Her business, Tula Veterinary Nutrition, hosts online courses that teach owners how to cook for their pet for optimal health and longevity. Follow her on Instagram at @doctorwolfe.dvm for dog nutrition tips, recipes and insights.