Flexi Says: To digest polysaccharides, the human body needs to be able to make specific enzymes that break down specific polysaccharide structures. For example, the enzyme amylase specifically breaks down starches. Cellulose is a polysaccharide that requires the enzyme cellulase to be broken down (digested). Cellulase can be produced by certain bacteria, fungi, and protozoa, but not humans.
