Chocolate contains a substance called theobromine, found in the cocoa bean, and is the feel-good stuff which apparently dogs metabolize very slowly, and if consumed in large doses could have a serious effect on the animal’s heart, kidneys and central nervous system. So this myth does contain some elements of fact. But here’s the shock - chocolate actually carries the same risk to your dog as the ingestion of other common household items such as coffee, tea, cola, beverages and certain house plants!
The truth is, all poisoning is a matter of ‘dosage per weight.’ For example, little Tiddlely-pom-pom, a 3 Kilo Pomeranian would need to gobble up a whole slab of chocolate, all at once, to be seriously affected. Furthermore, scientific studies on the subject do not seem to exist either … take my word for it, millions of healthy dogs, with fat butts, all over the world, enjoy the odd chocolate with no serious ill effects.