The sweetener Xylitol poisons a lot of dogs.
As little as 3 grams of Xylitol (eight piece of chewing gum) is enough to kill a 65-pound dog.
As little as two piece of gum could kill a terrier. The toxic dose for dog is between 50 milligrams (mg) and 100 milligrams per pound of body weight.
Common products with Xylitol in them include Trident sugarless gum and many sugarless candies, chewing gums, breath fresheners, nicotine gum, toothpastes, sunscreen, and even some vitamins and diet supplements.
Xylitol poisons dogs because human and dog sugar controls work differently. When a dog gets Xylitol, it causes the dog to go into hypoglycemia.
If your dog ingests Xylitol, get in on a sugar-milk mix FAST, and get it to a vet if it is anywhere near a toxic dose.