Can Dogs Eat Walnuts? No — Mold Toxicity and Direct Toxicity 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 and even English walnuts can cause gastrointestinal issues and are prone to mold.
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Warning Signs & Symptoms
Vomiting, diarrhea, tremors, seizures from mold toxins (mycotoxins), weakness.
If Your Dog Ate This
Call vet immediately. Black walnut ingestion is a serious emergency. Monitor for tremors and seizures.
What to Avoid
all parts — raw, roasted, in any form
Preparation & Serving
Keep all walnuts away from dogs. Black walnuts are especially toxic.
Safer Alternatives
- Plain peanuts in small amounts as a safer nut alternative
Did you know?
Black walnuts produce a compound called juglone which is toxic to many plants and animals — dogs that eat fallen black walnuts from trees face the highest risk.
Portions & nutrition
- Toxic dose (per kg body weight)
- Black walnuts — any amount can cause neurological symptoms
- Calories (per 100g)
- 654
- Safe frequency
- Never
Source
What You Need to Know
Walnuts are frequently contaminated with Aspergillus mold which produces tremorgenic mycotoxins. Black walnuts specifically are toxic. Not worth the risk for dogs.
Not sure what to do next? Read our emergency guide What to Do If Your Dog Eats Something Toxic
Want to know what other dangers are hiding in your home?
Take the 60-second kitchen safety quiz to find out your dog's risk score.
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