In 1950s, the use of x-ray examination had promoted the study of the presence of chitin or chitosan in fungi. Though, it is just the most highly developed technologies that demonstrated the most trustworthy in keying out the occurrence of chitin in addition to cellulose in the cell walls. In the beginning of sixties, chitosan was checked out for its capability to attach with the red blood cells. Chitosan is made of crustaceans shell and some people have allergy problem because this shellfish. Research proves that mostly people are allergy from different shellfish like shrimps; lobster etc so you should be careful before taking this medicine. If you are pregnant and you want to use discount chitosan then you must consult with your doctor because sometime it will affect the growth of the child. This is the reason that people go for Chitosan to reduce their weight along with lowering of cholesterol level. However, it is concluded from all of the medical studies on Chitosan that it has more shortcomings than benefits. Numerous medical studies on Chitosan were conducted in order to observe whether Chitosan is really capable of improving human cholesterol profile or not. The recommended dose of Natrol Chitosan is 3 capsules before each fat containing meal. Natrol is regularly broadening its perspective and scope by means of formulating and producing innovative Natrol Chitosan. This cutting edge product brings much better quality especially in the life of overweight people. Reason behind this approach of critics is the non-availability of medical evidences supporting that there are no dangers of chitosan. This is why, most of critics and biomedical experts strongly oppose the use of medicines composed of chitosan. It seems good to use medicines for controlling your weight and cholesterol level. Several biomedical studies on Chitosan have revealed that it is quite useful substance for controlling blood pressure. In addition, this valuable compound is also present in medicinal products used for following purposes. Prevention from constipation Reduction in blood levels of uric acid Calcium enhancer Bone strengthener Number of biomedical and chemical analysis has been carried out by professionals just to get answer.