Can Cats Eat Brazil Nuts?
Why it’s a problem
Brazil nuts are the most selenium-dense food commonly found in kitchens, and a single nut can hold several times a small animal’s sensible daily intake. Selenium toxicity causes vomiting, hair loss and nerve damage, and the nuts’ extreme fat content adds stomach upset on top.
How to serve it safely
Keep Brazil nuts in sealed containers high up, and never use them as a treat for any pet.
Warning signs to watch for
Vomiting, diarrhea, garlic-like breath odor, lethargy and, with repeated exposure, hair loss and wobbliness from selenium toxicity.
When to call the vet
Call your vet if a cat eats a Brazil nut, and describe how many and how often — repeated doses matter more than a single one.
Common questions
Is a small piece of one nut safe?
A fragment is unlikely to cause acute harm, but with such concentrated selenium and fat, there is no safe routine way to share them.
More foods for cats
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away.