Some toxins are specific to cats, dogs, horses, and ruminants. We’ll break down these eight for you in an easy-to-remember list. Ahna Brutlag, DVM, MS, DABT, Adrienne C. Bautista, DVM Pet Poison Helpline 1. Xylitol is a threat to dogs. Xylitol is a natural sugar-alcohol normally found in small amounts in many fruits and vegetables….