This simply means that it is largely free of the side effects that so many people experience with a number of prescription and nonprescription weight loss supplements and medication. Chitosan is not best for pregnant women, so avoid taking it when you're pregnant. Also, when you are nursing or taking any medication, consult your health care professional first before taking any product that contain chitosan. After days of treatment, the results revealed no significant difference between two groups on any of the body mass index, serum cholesterol, triglycerides, Vitamins A, D, E or beta-carotene levels. This is what actually led weight loss experts to agree that chitosan simply does not work. Further studies on chitosan were conducted, but all of them, however, have shown that chitosan didn't block fat. Natrol, Inc. based in Southern California is one of the well known companies producing nutritional supplements including Natrol Chitosan. In fact, this company not only manufactures but also advertises its high quality and branded Chitosan supplements. This manufacturing company is now producing its own Natrol Chitosan capsules along with many other weight controlling tablets. Now, they are not required to be worried because chitosan plus is now available at medical stores that will surely help them in this regard. Chitosan Plus is basically composed of Chitosan polymer mostly obtained from the outer skeletons of crabs. Many other crustaceans may also be used in order to get Chitosan, which is in actual a compound of chitin. It is one of the safest and valuable weight loss supplements especially when used in combination with balanced dietary and exercise plan. An essential advantage of taking LipoSan Ultra Chitosan is the eradication of excess fat present in digestive system. It has been noticed that solubility rate of fat incredibly increased when it is used at mealtime. Another significant the discovery that Chitosan is a natural compound with similar chemical properties as that of cellulose. Cellulose is a fibrous plant and as Chitosan chemically resembles to it that is why it possesses fibrous properties. These fibers has made Chitosan a significant ingredient in products used for controlling weight and cholesterol of human body.