Verdict
Feed only in moderation
Safe amount
Best avoided
Species
🐶 Dogs
Why this verdict for dogs
Walnuts are high in fat and, especially when moldy, can contain toxins that cause tremors and seizures. Best avoided.
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Frequently asked questions
Can dogs eat walnuts?
In moderation. Walnuts are high in fat and, especially when moldy, can contain toxins that cause tremors and seizures. Best avoided.
How much walnuts can dogs have?
Recommended: Best avoided. When in doubt, ask your vet.
Is walnuts safe for cats too?
Verdicts can differ between species. See the cat answer for walnuts →
Related foods
By the CanMyPet Editorial Team · Reviewed against ASPCA Animal Poison Control, the American Kennel Club (AKC) and Pet Poison Helpline · Last updated June 2026.
Sources
- ASPCA — People Foods to Avoid Feeding Your Pets
- American Kennel Club — Dog Nutrition
- Pet Poison Helpline — Poison List
CanMyPet provides general information reviewed against trusted sources (ASPCA, AKC, Pet Poison Helpline). It is not a substitute for professional veterinary advice. When in doubt, always contact your veterinarian.