Non GMO Validated Dietary Supplement No Calorie, All-Purpose Sweetener Source Naturals Erythri-Sweet is an all-purpose, non-GMO sweetener that contains zero calories per serving. Erythritol is a sugar alcohol that occurs naturally in fruits and some fermented products, like wine, and has been studied extensively as a low-calorie sweetener. I can be used to sweeten any favorite food or beverage, but is particularly effective as a high-quality sugar substitute in baked goods, and is stable during baking. It does not promote tooth decay, and is both suitable for vegetarians and safe for pets.