Chitosan Warning: Reasons to be Couscous Chitosan is now very much marketed as a potent weight loss supplement. At its most basic level, chitosan is a substance found in the shells of crustaceans, like crabs, lobsters and shrimps. It is extracted and taken in a form of supplement with meals and believed it encourages weight loss by binding to fat molecules, preventing the body from absorbing fat. Furthermore, most of the cholesterol lowering evidences reported in other resources is attained in another noteworthy fashion. The fact is, most of the studies on chitosan were conducted on mice, canines, guinea pigs, and broiler chickens. There is actually a lack of studies on chitosan conducted on humans. Chitosans (Cs) with changeable concentrations. For additional prominence, the alcohol-chitosan mingle films were manufactured by drawing the individual polymer results. The recognized glutaraldehyde was applied as a type of cross-linking instrument. After that, a serial of polyvinyl alcohol-chitosan were developed by changing ratio of the components. Chitin is also found in exoskeletons of shellfish and is the second abundantly occurring polymer in nature. Moreover, manufacturers may also get chitin from shells of insects and cell walls of fungi for preparing dry or liquid Chitosan synthetically. Chitosan is nothing but just the most refined form of natural chitin, which is obtained from shells of crustaceans and shellfish. Numerous medical studies on Chitosan were conducted in order to observe whether Chitosan is really capable of improving human cholesterol profile or not. Chitosan compound has moderate ability of developing better cholesterol profile according to double-blind type of medical studies on Chitosan. Medical trial controlled by placebo was conducted on 51 women for time period of eight weeks. N-acetyl-D-glucosamine is acetylated unit (A) whereas D-glucosamine is a deacetylated unit (D). This chemical composition shows that Chitosan can be produced through the deacetylation of chitin on commercial basis. Chitin is the basic structural element present in the outer skeletons of crustaceans and this has been found out by resources of Chitosan chemistry.