Cat Chocolate Toxicity Calculator

The toxic dose depends on the type of chocolate and the cat's weight. For a 10 lb (4.5 kg) cat, as little as 0.5 oz of baking chocolate or 1.5 oz of dark chocolate can reach a moderate risk level. Even small amounts should be taken seriously. When in doubt, call a vet.

Dark chocolate contains significantly more theobromine per ounce than milk chocolate - approximately 150 mg/oz versus 60 mg/oz. Cocoa powder is the most concentrated, at around 800 mg/oz. The higher the cacao percentage, the higher the theobromine content and the lower the amount needed to cause toxicity.

A very small lick of milk chocolate from a normal-sized adult cat likely falls in the low-risk range, but it is always worth contacting your vet or ASPCA Poison Control to confirm based on exact weight and amount. Even low-risk doses can cause GI upset. Monitor your cat closely for 24-48 hours for any signs of vomiting, diarrhea, or restlessness.

Do not attempt to induce vomiting at home in cats without direct veterinary guidance. Unlike dogs, cats are very difficult to induce vomiting safely. Hydrogen peroxide, which is sometimes used for dogs, is toxic to cats. Only a veterinarian can safely perform emesis in cats, typically with injectable medications. Call a vet immediately instead.