Xylitol is a naturally occurring sugar that can be found in fruits, vegetables and grains like raspberries, mushrooms, corn and oats. It’s typically extracted from birch trees or corn. When xylitol is extracted from plants, it can be used as an artificial sweetener with some pretty sweet benefits. It's safe for people with diabetes, contains about one-third of the caloric content of sugar and doesn’t cause tooth decay. In fact, there's evidence to suggest it can actually prevent cavities.