Can dogs eat chocolate and die if they do? Dogs cannot eat chocolate and will die if they do. Because chocolate contains methylxanthine, it will cause the dog’s heart to beat faster and reduce the blood flow delivered to the dog’s brain, which may lead to heart disease, epilepsy and even death. Dogs can show symptoms in 2-3 hours after eating chocolate. Dogs that eat large amounts of chocolate can cause muscle tremors, convulsions, cardiac arrhythmias, internal bleeding or heart disease. The owner should immediately take the dog to the hospital for gastric lavage treatment.
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