Chitosan And Weight Loss 1.0 Regardless of chitosan's miraculous overview, it is a very simple substance, which has been around for ages. It is taken from chitin, a polysaccharide found in the exoskeletons of crustaceans. It is processed by removing the shells from shellfish such as shrimp, lobster, and crabs.Basically stated, chitosan is a special fiber which is able to "soak up" or absorb anywhere from six to ten times its weight in fat and oils. See also: Chitosan, And, Weight, Loss |