Can Cats Eat Mistletoe?
Why it’s a problem
Mistletoe contains viscotoxins and related proteins that damage cells and, at real doses, depress the heart and breathing. The berries and leaves are both toxic, and European varieties tend to be more potent than American ones. Hanging sprigs drop berries, which is how pets usually get dosed.
How to serve it safely
Use artificial mistletoe in homes with pets, and if real sprigs hang, sweep fallen berries daily and keep them out of reach.
Warning signs to watch for
Drooling, vomiting, diarrhea and abdominal pain, with larger doses bringing wobbliness, slow heart rate, low blood pressure and breathing difficulty.
When to call the vet
Call your vet or a poison hotline if a cat eats mistletoe berries or leaves, and go urgently for collapse or breathing trouble.
Common questions
How bad is one fallen berry?
A single berry usually causes gut upset rather than heart effects — but call your vet with the amount, and sweep up the rest immediately.
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.