Sweets & snacks
Can cats eat chocolate?
Theobromine and caffeine are toxic to cats; dark and baking chocolate are the most dangerous.
Portion: None.
The short answer
No. Chocolate contains theobromine and caffeine, which cats metabolise very slowly. Dark, baking and cocoa powder are the most dangerous, but milk chocolate can harm a small cat too. Cats rarely seek out chocolate because they can't taste sweetness — but brownies, cocoa and chocolate-coated treats are still risks. Call your vet if any is eaten.
Why it’s dangerous
Theobromine and caffeine are methylxanthines. They stimulate the heart and nervous system and cause fluid loss. Cats clear them slowly, so effects last longer. Darker chocolate contains far more theobromine per gram than milk chocolate; white chocolate has very little but is still fatty and sugary.
How to keep your cat safe
- Never feed chocolate or cocoa.
- Keep baking supplies, hot-cocoa mix and brownies sealed.
- Cocoa-bean mulch in gardens is also a hazard.
Signs of trouble
- Vomiting and diarrhoea
- Restlessness, hyperactivity
- Increased thirst and urination
- Racing heart, tremors
- Seizures (severe cases)
Chocolate & cats: FAQ
How much chocolate is toxic to cats?
It depends on type and body weight. For a 4 kg cat, even a few grams of dark chocolate can cause signs. Call your vet with the type and amount.
Is white chocolate safe for cats?
It contains very little theobromine but is fatty and sugary. Not recommended.
Why don't cats usually eat chocolate?
Cats can't taste sweetness, so they're less tempted — but they may lick frosting or cocoa.
Related foods
See every food that’s toxic to cats →
Sources
- Merck Veterinary Manual — Chocolate Toxicosis in Animals (accessed 2026-09-29)
- ASPCA Animal Poison Control — People Foods to Avoid Feeding Your Pets (accessed 2026-09-29)
Last updated 2026-09-29. We are not veterinarians: this guide summarises published veterinary references and is not a substitute for advice from your vet. See our methodology and disclaimer.