XyliSmart® Xylitol Low-Calorie & Low-Glycemic Sweetener Non-GMO from Birch Tree XyliSmart® xylitol is a sugar substitute derived from plants. Frequent consumption of between-meal snacks high in sugar and starches can promote tooth decay, while the sugar alcohol xylitol may reduce the risk of dental caries. XyliSmart xylitol is known as a low-glycemic index (GI) sweetener due to its slow absorption into the bloodstream, which does not result in the rapid changes in blood glucose concentrations in response to sucrose. XyliSmart xylitol looks and tastes as sweet as sugar, but with 40% fewer calories and without any of the downsides of sugar, and delivers a cool, refreshing aftertaste.†† Not Genetically Modified.* Crystals Option Available: 3, 8, 16, 32 Suggested Use: As a sugar substitute, add in amounts satisfactory to your taste.