There are many items that are even more harmful than most even know about (like the artificial sweetener Xylitol found in many sugarless peanut butters, mints and gums), and others where the dangers are purely dose dependent (like chocolate, certain nuts, raw onions and garlic, avocados and many flowers, such as poinsettias). (dogingtonpost.com)
Think Halloween chocolate candy, raisin recipes, artificial sweeteners, candy, the natural sweetener xylitol, chemicals, moldy foods, and more. (heathermcclees.com)
Ingredients in Foods Such As Avocado, Caffeine and the Artificial Sweetener Xylitol Are All In Foods Poisonous to Dog (dog-health-guide.org)