Erythritol is a naturally-occurring sugar alcohol derived from a corn source and is naturally found in small amounts in various plants, fruits and fungi, including mushrooms. It contains virtually no calories (95% less calories th&ampnbsp; table sugar), has a low glycemic impact, and doesn&amprsquo;t contribute to tooth decay. Basically all the bad things about sugar are absent in Erythritol, yet it tastes just like sugar and is about 70% as sweet.NOW Real Food&amptrade; Erythritol has a clean, sweet taste and is the perfect natural substitute for sugar in many applications. There&amprsquo;s really no need to use refined table sugar ever again.