Xylitol, a sugar which has become a common in foods and , is also quite toxic. I hate this fucking job. Which of the holiday plants is least toxic to dogs?. Many things that are ok for humans are poison for dogs, but who knows about it? Now you do. Don’t let dogs eat. Cocoa mulch. raisins, grapes, nuts, alcohol, coffee, yeast dough, onions, and onion powder. I hate the tasks they give me. Nuts are soft, light-colored nuts often used in cookie recipes. Teens teens o. Dogs develop a tremor of the muscles.