Chocolate is directly toxic because it contains methylxanthines. Specifically, the methylxanthines that chocolate contains are theobromine and caffeine. Both caffeine and theobromine produce similar effects, with theobromine's effects lasting much longer than caffeine.
The American Veterinary Medical Association (AVMA) has created a Quiz to find out how much you know about your pet's dental health. Take the quiz here. Your veterinarian can tell you about early signs of potential problems and how to keep your pet's mouth healthy.
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