What food is bad for dogs? Some people feed their dogs food for human because they love their dog or their dogs look like wanting eat that. The best is not to feed dogs human food. If you have to feed your dog human food, you need to remember that there are some food which you avoid to feed your dog. 1. chocolate Maybe many people know that the chocolate is bad for dogs. The ingredient 'theobromine' in chocolate can cause vomiting, diarrhea, thirst...