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Is it dangerous for my cat to nibble tomato leaves every day?

Cats · Food safety

Last reviewed: 2026-09-05 · Reference ranges: ASPCA, Pet Poison Helpline & Merck Veterinary Manual

Short answer

Yes, this is very dangerous. Tomato leaves and stems contain solanine and tomatine, which are toxic to cats. Repeated daily exposure allows these toxins to build up in your cat's system, leading to serious poisoning. Call your vet immediately for advice, and contact the ASPCA Animal Poison Control Center at (888) 426-4435 if you see any signs of vomiting, drooling, or lethargy.

Tomato leaves & stems — Food safety facts

Do not feed · Cats · full breakdown on the linked food page

The fruit is fine, but the leaves and stems contain solanine and tomatine.

The full verdict, portion guidance and serving notes are collected on the Tomato leaves & stems food facts page.

Open the full food page: Tomato leaves & stems food facts →

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