allulose

This low-calorie monosaccharide sugar, also known as D-Psicose, is utilized as a sweetener in various food and beverage products. Identified first in wheat during the 1940s, it is naturally found in certain foods in small quantities. With 90% fewer calories than regular sugar, it has become a favored alternative sweetener. Its chemical composition is C6H12O6 and it provides 0.4 calories per gram.