Why this verdict for cats
Mistletoe is toxic to cats and can affect the heart and blood pressure beyond simple stomach upset. Treat ingestion of more than a berry or two as an emergency.
Warning signs to watch for
- Vomiting
- Drooling
- Weakness
⚠ If your cat ate mistletoe
Act immediately — don't wait for symptoms.
- Call your vet or a pet poison helpline right away.
- Note how much was eaten and when.
- Do not induce vomiting unless a professional tells you to.
Poisoning emergencies are expensive
A single toxicity visit can cost hundreds. Compare pet insurance plans that cover accidents and poisoning.
Frequently asked questions
Can cats eat mistletoe?
No. Mistletoe is toxic to cats and can affect the heart and blood pressure beyond simple stomach upset. Treat ingestion of more than a berry or two as an emergency.
How much mistletoe can cats have?
None — mistletoe is not safe for cats and should be avoided entirely. When in doubt, ask your vet.
Is mistletoe safe for dogs too?
Verdicts can differ between species. See the dog answer for mistletoe →
More plants for cats
By the CanMyPet Editorial Team · Reviewed against ASPCA Animal Poison Control, the American Kennel Club (AKC) and Pet Poison Helpline · Last updated June 2026.
Sources
- ASPCA — People Foods to Avoid Feeding Your Pets
- American Kennel Club — Dog Nutrition
- Pet Poison Helpline — Poison List