Can cats eat chocolate?
No — chocolate is toxic to cats. Theobromine can cause poisoning with racing heart, cramps and death even in small amounts. Chocolate belongs out of reach.
Which substance is dangerous?
Cocoa contains theobromine and caffeine — methylxanthines that cats break down only very slowly. They overstimulate heart and nervous system. The darker the chocolate, the higher the theobromine content: baking cocoa and dark chocolate are many times more dangerous than milk chocolate, but no variety is safe.
How much is dangerous?
There is no safe amount. For a 4 kg cat, as little as 20 g of dark chocolate can be critical; even smaller amounts trigger symptoms. Cats rarely seek out chocolate on their own — most cases involve cocoa in baked goods, cream desserts or drinking chocolate.
Symptoms of poisoning
Restlessness, vomiting, diarrhoea, heavy drooling, racing heart, arrhythmia, muscle tremors, cramps and elevated temperature — appearing within one to a few hours. Severe cases lead to circulatory failure.
Emergency: what to do?
Suspected chocolate ingestion? Contact the vet or the emergency veterinary service immediately — even if the cat still seems fine, symptoms often start with delay. Note the variety and estimated amount, take the packaging with you and never induce vomiting on your own.
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Frequently asked questions
How much chocolate is dangerous for a cat?
There is no safe amount. The darker the chocolate, the more theobromine — for a 4 kg cat even ~20 g of dark chocolate can be critical.
My cat licked chocolate cream — what now?
Watch the cat closely and call the vet, stating the product and amount. Cocoa desserts also contain milk and sugar, which cause additional trouble.
Is white chocolate also toxic?
It contains hardly any theobromine but plenty of sugar and fat — no acute poison, but still completely unsuitable.
How fast do symptoms appear?
Usually within one to four hours: restlessness, vomiting, racing heart, tremors. At the first sign, off to the vet.
Important note
This article never replaces veterinary advice. If you suspect poisoning or symptoms persist, contact your vet or the emergency veterinary service immediately.
Sources: Veterinary toxicology: methylxanthine (theobromine/caffeine) poisoning in cats. Last updated: 08/2026.
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