Smaller dogs are at a higher risk of toxicity because their bodies metabolize theobromine slower relative to their size, Dr.

Keep reading to learn more about chocolate’s main toxin, theobromine, and why it is harmful to dogs. The main toxin in chocolate is theobromine and it has similar effects on the body as caffeine.

Tis the season for chocolate lovers to go nuts. Americans collectively shelled out nearly $7 billion for holiday confections ...