Erythritol is a natural sweetener that occurs naturally in some mushrooms, fruit (including watermelon, grape and pear) and fermented foods such as wine, cheese and soy sauce. Erythritol is the only natural polyol, and is produced by natural fermentation and has about 70% of the sweetening power of ordinary sugar.
Erythritol contains no calories because it is otherwise absorbed than other sweeteners. It is only absorbed in the small intestine and excreted through the urinary tract and thus the calories of erythritol are not included. Erythrtol affects blood sugar and is therefore not a good alternative for diabetics.