8 Foods You Should Never Feed to Your Dog

This is probably the one you already know. Chocolate is highly toxic to dogs and should always be kept away from them. The effects of a dog eating chocolate can vary based on your dog's size and how much chocolate they eat, but you don't want to test it. Dr. Bernal said, "The type of chocolate is also significant: dark chocolate is important to avoid, as it contains a more concentrated amount of the toxic ingredient, theobromine, than milk chocolate."