Pourquoi ?

Macadamia nuts cause a distinctive toxicosis in dogs with no known equivalent in other animals. The specific toxic compound has not been identified despite extensive study. The syndrome is relatively mild compared to grape or xylitol toxicity — it is rarely fatal — but it is painful and warrants veterinary care.

The mechanism appears to target the peripheral nerves and musculature, causing a temporary inability to use the hind limbs effectively. Most dogs recover fully within 24–48 hours with supportive care, but the combination of weakness, hyperthermia, and pain makes it distressing for the dog.

Macadamia nuts are frequently found in cookies and trail mix — the combination of macadamias and chocolate in cookies creates a dual toxicity emergency.

Quelle quantité est dangereuse ?

Toxic doses have been reported at as low as 2.4g per kg of body weight (approximately 11–40 nuts). Even small amounts can cause symptoms, particularly in small dogs.

Quels sont les symptômes ?

DÉBUT :Within 12 hours of ingestion, with peak symptoms at 12–24 hours. Recovery typically within 24–48 hours.
  • weakness particularly in the hind legs
  • inability to walk or stand
  • vomiting
  • tremors
  • fever (103°F+)
  • lethargy
  • joint stiffness or pain

Que dois-je faire ?

Contact your vet. While rarely fatal, supportive care (fluids, pain management, anti-nausea medication) significantly reduces discomfort. If macadamia nuts were combined with chocolate, treat as a chocolate emergency.

Questions fréquentes

Can dogs eat roasted macadamia nuts?

No. Roasting does not reduce the toxicity of macadamia nuts.

What if my dog ate macadamia nut cookies?

Treat as two separate toxins: macadamia nuts AND chocolate (if present). Call your vet immediately.

Will my dog recover from macadamia poisoning?

Most dogs recover fully within 24–48 hours with supportive care. Fatalities are rare but the discomfort requires veterinary management.