Xylitol Powder, Non-GMO, Value Size, 15 lb, NOW FoodsNOW Foods Xylitol Powder 1 3 Fewer Calories Than Sugar. Pure and Natural Sweetener. Excellent Alternative to Sugar. There's a lot to like about xylitol. This naturally occurring sugar alcohol is one of the healthiest and most unique sweeteners you'll find. Unlike sugars such as sucrose and fructose, NOW Real Food Xylitol is a sugar alcohol, which doesn't promote tooth decay. Even though it's classified as a carbohydrate, it has a low glycemic impact