This important medical study had time span of six months and involves 250 overweight people. Again, it was a double blind medical trial in which individuals were given 3 grams dose of Chitosan per day. This study shows that Chitosan products have insufficient tendency of improving human weight loss to the significant extent. Tell your doctor if you are taking medicine or are allergic to any medicine, or if you are pregnant or planning to become pregnant while using chitosan. This must also apply to those mothers who are breastfeeding, as well as to people who have clotting problems and have any other health problem, such as high blood pressure or heart or blood vessel disease. Chitosan is one of the fundamental ingredients playing a part of commercial and biomedical applications. However, most people do not know what Chitosan is and majority of people do not have much knowledge about it either. It is human nature to be curious about the new things and is no different with Chitosan. One of the renowned and heavily purchased products of this series is Natrol Chitosan of 500mg. It is one of the most popular dietary supplements as the source of natural fiber according to several reviewers. This dietary supplement is quite effective and is much easy to be swallowed. This Natrol Chitosan contains about 95% of deacetylated Chitosan to enhance its solubility capacity. One of the generally formed mixes these days is mixings with polyvinyl alcohol as well as chitosan. The polyvinyl alcohol-chitosan mixed celluloids are generally made from: The polyvinyl alcohol (PVA). Chitosans (Cs) with changeable concentrations. For additional prominence, the alcohol-chitosan mingle films were manufactured by drawing the individual polymer results. In addition, chitosan weight loss products declare to have an effect on that fat before it reaches the stomach. As a result, the fat reduces the possibility to be metabolized. Moreover, it is distinguished that the chitosan disallows the incorporation as well as storage of fat by substituting it into a gel which pins down or chokes up the fat.