Why is chocolate poisonous for dogs?

Whether you have a dog, want a dog, don’t like dogs, or are a dog…one thing's for sure. Dogs can’t eat chocolate! Why is it so bad for them? We asked Cassie Panning, a certified veterinary technician from the University of Minnesota, to help us find the answer. Got a question that’s pawing at you? Send it to us at BrainsOn.org/contact, and we’ll help pup-date you on the topic!