Research strongly suggests that Goji’s four unique polysaccharides work in the body by serving as directors and carriers of the instructions that cells use to communicate with each other. In this way, it can be said that these polysaccharides are "Master Molecules" by virtue of their ability to promote optimal health throughout the body. In the goji berry, polysaccharide levels can vary widely depending upon where and when the berry is grown, and that may explain why some berries are said to be more beneficial than others.