Not Safe

Not SafeVet Reviewednut

Not Safe for Dogs

Medium dog serving: never

Key warning: all walnuts — black and English varieties, shelled and unshelled, fresh and moldy

Can Dogs Eat Walnuts? No — Black Walnuts Are Highly Toxic, All Walnuts Have Mold Risk

This food is NOT safe for dogs. Keep it away from your pet.

Walnuts are not safe for dogs. Black walnuts are highly toxic containing juglone. English walnuts are less toxic but still harmful from mold risk producing aflatoxins, high fat causing pancreatitis, and size causing choking. Never give dogs walnuts of any variety.

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Warning Signs & Symptoms

Black walnuts: juglone toxicity causing vomiting, tremors, seizures. All walnuts: mold risk producing aflatoxins causing liver damage. High fat: pancreatitis. Large size: choking and obstruction hazard.

If Your Dog Ate This

Call vet immediately for black walnut ingestion. Monitor for mold exposure symptoms — vomiting, lethargy, jaundice.

What to Avoid

all walnuts — black and English varieties, shelled and unshelled, fresh and moldy

Portions & nutrition

Serving (small dog): never
Serving (medium dog): never
Serving (large dog): never
Calories (per 100g): 654
Safe frequency: Never

Source

Source: SAFEFOODFORDOGS

What You Need to Know

Black walnuts contain very high concentrations of juglone — extremely toxic to dogs causing neurological symptoms including tremors and seizures. English walnuts have lower juglone but significant mold risk — aflatoxins from mold on walnuts cause serious liver damage. Any walnut on the ground is at high mold risk. The high fat content of all walnuts creates pancreatitis risk. Never give dogs walnuts, walnut-containing baked goods, or allow access to fallen walnuts.

Not sure what to do next? Read our emergency guide What to Do If Your Dog Eats Something Toxic

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If Your Dog Ate This — Act Now

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Frequently asked questions

Is Can Dogs Eat Walnuts safe for dogs?: No, Can Dogs Eat Walnuts is not safe for dogs. Walnuts are not safe for dogs. Black walnuts are highly toxic containing juglone. English walnuts are less toxic but still harmful from mold risk producing aflatoxins, high fat causing pancreatitis, and size causing choking. Never give dogs walnuts of any variety.
What happens if a dog eats Can Dogs Eat Walnuts?: If a dog eats Can Dogs Eat Walnuts, they may experience: Black walnuts: juglone toxicity causing vomiting, tremors, seizures. All walnuts: mold risk producing aflatoxins causing liver damage. High fat: pancreatitis. Large size: choking and obstruction hazard.
How much Can Dogs Eat Walnuts can a dog eat?: Black walnuts contain very high concentrations of juglone — extremely toxic to dogs causing neurological symptoms including tremors and seizures. English walnuts have lower juglone but significant mold risk — aflatoxins from mold on walnuts cause serious liver damage. Any walnut on the ground is at high mold risk. The high fat content of all walnuts creates pancreatitis risk. Never give dogs walnuts, walnut-containing baked goods, or allow access to fallen walnuts.

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Medical Disclaimer: This information is for educational purposes only. Always consult a licensed veterinarian before making dietary changes for your pet.