Is Xylitol an artificial sweetener?

Xylitol is a natural sugar substitute safe for diabetics. It is not an artificial sweetener but is a natural sugar alcohol sweetener found in the fibres of many fruits and vegetables, and can be extracted from various berries, oats, and mushrooms, as well as fibrous material such as corn husks and sugar cane bagasse. Xylitol is roughly as sweet as sucrose with only two-thirds the food energy.