As I said, most fruits and vegetables are natural sweeteners that can be extracted into sugar. which bananas are classified as those fruits Bananas belong to a class of a non-starch polysaccharides (NSP), that are water-soluble, similar to oats, barley, and beans. The NSP that can be found in Nanicao bananas is hemicellulose. Galacturonic acid, and so on. In addition, NSP is also classified as a dietary fiber that does not provide energy but helps the body work more efficiently.