What is Fructose Powder? BULK POWDERS™ Fructose Powder is a 100% pure source of this fast absorbing carbohydrate, containing no additives or fillers whatsoever. Fructose is a naturally occurring simple sugar known as a monosaccharide. It has a low Glycemic Index score of 19, therefore is digested over a longer period of time & has a lesser impact on blood sugar levels compared to other carbohydrate sources such as Maltodextrin. Fructose Powder is a particularly popular carbohydrate