Cat Chocolate Toxicity Calculator

Chocolate contains methylxanthines, principally theobromine and caffeine, that cats metabolize slowly. Exposure can affect the digestive, cardiovascular, and nervous systems. This calculator estimates theobromine dose by multiplying the amount eaten by a representative concentration for the selected chocolate, then dividing by the cat's weight. Concentrations vary by recipe, cocoa percentage, brand, and batch, so the displayed number is an approximation and must not delay professional advice. Dark chocolate, unsweetened baking chocolate, and cocoa powder contain far more theobromine per gram than white or milk chocolate. Even a small amount of a concentrated product can produce a significant dose in a lightweight cat. Filled candies may introduce additional hazards such as caffeine, alcohol, raisins, macadamia nuts, or sugar-free sweeteners. Wrappers and packaging can also cause obstruction. Keep the package and ingredient list available when you call a veterinarian or poison-control service. Possible signs include vomiting, diarrhea, restlessness, increased thirst, rapid breathing, abnormal heart rate, tremors, weakness, seizures, or collapse. Signs may be delayed for hours, while early veterinary treatment can reduce absorption and manage complications. Do not induce vomiting or give home remedies unless a veterinary professional specifically directs you to do so. Cats can be injured by inappropriate vomiting methods, and treatment depends on timing, symptoms, dose, and medical history. If the amount or type is uncertain, use the most concerning reasonable estimate when communicating with the clinic. Record the cat's weight, product name, cocoa percentage, estimated amount, and earliest possible ingestion time. The calculator's bands are educational screening categories, not guarantees of safety. Sensitivity varies and caffeine is not separately modeled. Any known chocolate ingestion deserves a prompt call, especially for kittens, small cats, older cats, cats with heart disease, or cats already showing signs. Emergency decisions should always come from a licensed veterinarian or qualified animal poison specialist.