Chocolate

42. Too much chocolate could lead to heart attack

Chocolate is toxic because it contains high levels of theobromine. It is a molecule like caffeine. Humans can quickly absorb and digest this ingredient, but dogs, process it rather slowly, resulting in toxic levels in their systems.

Photo Credit: Akc Pet Insurance

Once consumed in large amounts, theobromine causes muscle tremors, irregular heartbeat, convulsions, internal organs, worse, a heart attack. If your dog has severe hyperactivity, act quickly and contact your veterinarian, as your dog may have been poisoned.

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