Walnuts
ToxicWalnuts, especially moldy ones, can contain tremorgenic mycotoxins that cause seizures.
Quick Answer: Is Walnuts Toxic to Dogs or Cats?
Use this short answer first, then read symptoms and what to do next.
Is Walnuts toxic to dogs?
Yes. Walnuts is toxic to dogs and should be avoided. Contact a veterinarian if your pet ate it or has symptoms.
Is Walnuts toxic to cats?
Yes. Walnuts is toxic to cats and should be avoided. Contact a veterinarian if your pet ate it or has symptoms.
Symptoms to watch for
Vomiting, tremors, seizures (especially from moldy walnuts)
What should I do now?
Contact vet if symptoms appear.
Dogs
Unsafe
Cats
Unsafe
Risk level
Toxic
Symptoms
Vomiting, tremors, seizures (especially from moldy walnuts)
What to do now
Contact vet if symptoms appear.
Explore Related Safety Hubs
Use these hub pages for broader dog, cat, cleaner, and emergency planning guidance.
Dog Toxicity Guide
Compare Walnuts with common dog food, plant, medication, and household toxicity risks.
Open hubCat poisoningCat Toxicity Guide
See cat-specific guidance for Walnuts, plants, cleaners, foods, and medication risks.
Open hubEmergency planningVet Cost Hub
Plan for emergency exams, toxin ingestion care, hospitalization, and insurance decisions.
Open hubSymptoms to Watch For
Vomiting, tremors, seizures (especially from moldy walnuts)
What to Do
Contact vet if symptoms appear.
Plan ahead for emergency vet bills
Poisoning, broken bones, and emergency surgery can get expensive quickly. Compare costs and accident coverage before you need it.
Pet Poisoning Emergency Checklist
A one-page checklist for symptoms, product labels, emergency contacts, and what to bring to the clinic.
Clinical References
Quick Answers
Is Walnuts poisonous to dogs?
Is Walnuts toxic to cats?
What symptoms can Walnuts cause in pets?
What should I do if my pet ate Walnuts?
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