Erythritol is naturally occurring in a wide variety of foods, including some fruits and vegetables. It's a white, odorless powder with a sweet taste similar to sucrose. It is produced by fermenting natural sugars into a sterilized mixture that is later purified into Erythritol Erythritol is 70% as sweet as table sugar, yet it is virtually non-caloric, with only 2 calories per gram, according to the FDA. Diabetics will be happy to know that on the glycemic index, Erythritol is rated zero. This means that insulin is not used to metabolize Erythritol. Erythritol has a high digestive tolerance. It's absorbed into the bloodstream and passed through the urine. Absorption occurs before it enters the large intestine, so it does not normally cause a laxative effect and most people will consume Erythritol with no side effects.