 Hi, it's Lori Kirshner from Animals Today, and here's your Animals Today Minute. Xylitol is a sweetener that is commonly used in sugar-free gum and candy, toothpaste, mouthwash, baked goods, and chewable vitamins. Xylitol is safe for humans, but can be extremely toxic to dogs. Luckily, cats do not seem to be interested in eating foods with xylitol.