Xylitol is a 5-carbon sugar alcohol naturally found in the fibers of many fruits and vegetables, including raspberries, strawberries, yellow plum, lettuce, cauliflower, corn, and corn husks.  It is a natural product that may be extracted from the bark of birch trees and other hardwood species containing xylan.

Why is it important for teeth?

Xylitol inhibits the cariogenicity, adhesivity, and acidogenic potential of plaque.  That means that in inhibits dental plaque from starting cavities, sticking to the surface of teeth, and lessening the acid that breaks down the surface of the tooth.