Can Dogs Eat Walnuts?
🟠 Best avoided
Best avoided. Walnuts are high in fat and hard to digest, and moldy or black walnuts can be toxic.
How much is okay?
A single plain walnut won't poison most dogs, but there's real risk from moldy nuts, so it's safest to skip them.
Symptoms to watch for
- •Upset stomach
- •From moldy walnuts: tremors and seizures
- •Choking or blockage in small dogs
If your dog already ate it
If your dog ate walnuts, especially old or moldy ones or black walnuts, call your vet.
Safer treats to give instead
Frequently asked questions
Why are moldy walnuts dangerous?
Mold on walnuts can produce toxins that cause tremors and seizures in dogs. Never let your dog eat nuts found on the ground.
Sources: ASPCA Animal Poison Control. This is general guidance, not a diagnosis. When in doubt, ask your vet.
More nuts & seeds
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