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Walnuts

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Walnuts

Nuts & Seeds

Caution Dog
English walnuts — not toxic but high fat. Black walnuts are TOXIC. Moldy walnuts produce deadly tremorgenic mycotoxins.
Caution Cat
High fat, potential GI upset. Not recommended.
Safe Bird
Shelled walnuts are a good treat for larger parrots. Crush for smaller birds.
Ask a vet Reptile
Not a natural reptile food.
Toxic Horse
Black walnut is extremely toxic — causes laminitis. Even shavings from black walnut wood are dangerous.
Avoid Rabbit
High fat nuts are dangerous for rabbits.
Caution Small pet
Small piece of English walnut for hamsters. High fat — rare treat only.
Caution Ferret
Hard to digest. Not appropriate food.

If your pet ate something dangerous

  1. Stay calm. Note what your pet ate, how much, and when.
  2. Call your vet or emergency animal hospital immediately.
  3. Call ASPCA Animal Poison Control: (888) 426-4435 A consultation fee may apply.
  4. Call Pet Poison Helpline: (855) 764-7661 A consultation fee may apply.
  5. Do NOT induce vomiting unless directed by a professional.
  6. Bring packaging or a sample of what was ingested to the vet.

About SafeBite

SafeBite is for informational and educational purposes only. It is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult your veterinarian before feeding your pet new foods, especially if your pet has known allergies, health conditions, or dietary restrictions. Toxicity can vary by species, breed, size, age, and individual health. When in doubt, contact your vet or call the ASPCA Animal Poison Control Center at (888) 426-4435.

Data sources: ASPCA, FDA, Pet Poison Helpline, and peer-reviewed veterinary literature.