What to do after ingestion
After ingestion, watch for vomiting, abnormal gait and changes in mentation.
Contact a veterinarian with the amount ingested and follow their advice.
Reported cases are almost all in dogs and data for cats are limited; with no reliable safety basis, they should not be fed at all.
What to do after ingestion
Hind-limb weakness or inability to walk, tremors, stiff joints, vomiting, lethargy, hyperthermia.
Contact a veterinarian with the amount and timing; most dogs recover in 24-72 hours with supportive care, but assessment is still needed.
Unknown (nerve/muscle function suspected)
Dogs commonly develop hind-limb weakness, difficulty standing, tremors and raised body temperature within 12 hours of eating macadamia nuts; the toxic mechanism is unknown but nerve and muscle function appear to be affected.
Nutrition
Per 100 g, edible portionData source：USDA FoodData Central · SR Legacy · Accessed on：2026-09-28
Cat · Safe feeding conditions
CautionNo additional condition notes for this food
Clinical and veterinary sources
Reported cases are almost all in dogs and data for cats are limited; with no reliable safety basis, they should not be fed at all.
After ingestion, watch for vomiting, abnormal gait and changes in mentation.
Contact a veterinarian with the amount ingested and follow their advice.
High-fat foods can also cause gastrointestinal upset and pancreatitis in cats.
Dog · Safe feeding conditions
ToxicNo additional condition notes for this food
Clinical and veterinary sources
Dogs commonly develop hind-limb weakness, difficulty standing, tremors and raised body temperature within 12 hours of eating macadamia nuts; the toxic mechanism is unknown but nerve and muscle function appear to be affected.
Unknown (nerve/muscle function suspected)
Hind-limb weakness or inability to walk, tremors, stiff joints, vomiting, lethargy, hyperthermia.
Contact a veterinarian with the amount and timing; most dogs recover in 24-72 hours with supportive care, but assessment is still needed.
Chocolate-coated macadamias add methylxanthine risk; the high oil content can also trigger pancreatitis.
This website is for reference only and does not replace a licensed veterinarian. If your pet has eaten a suspected toxin or shows symptoms, contact a veterinarian or an emergency animal hospital immediately.