Macadamia Nuts
DangerousMacadamia nuts cause weakness, vomiting, and tremors in dogs.
Toxicity Level
7/10Why It's Dangerous
Even a small number can cause symptoms. Combined with chocolate, effects are more severe.
The Science
Unknown compound (possibly juglone-related)Macadamia nut toxicity in dogs was first documented in 2001. The exact toxic compound has not been identified. The mechanism of action is also unknown, but it appears to affect the skeletal muscles and possibly the nervous system. Symptoms typically appear within 12 hours: weakness (especially in hind legs), vomiting, tremors, hyperthermia, and lethargy. Most dogs recover fully within 24-48 hours with supportive care. When combined with chocolate (e.g., chocolate-covered macadamia nuts), the effects are significantly more severe.
Sources
- •Journal of the American Veterinary Medical Association
- •ASPCA Animal Poison Control Center
- •Veterinary and Human Toxicology Journal
Dosage & Thresholds
Symptoms have been reported at doses as low as 2.4g/kg of body weight. For a 10kg dog, about 24g (roughly 10-12 nuts) could cause symptoms. There are no reported fatalities from macadamia nuts alone, but combined with chocolate, the risk increases substantially.
Symptoms to Watch For
If your dog has ingested macadamia nuts
Contact your veterinarian or an emergency animal poison hotline immediately. Do not induce vomiting unless instructed by a vet.
callFind Emergency Vet