Chitosan is a fancy carbohydrate (polysaccharide) derived from chitin, a major element in the shells of crabs, shrimps and clams, and also present in insects and cell wall of reishi mushrooms. Chitosan is orally taken for a dietary supplement to help fat reduction and lessen hypertension and cholesterol concentrations. https://rivertrokc.ampedpages.com/5-essential-elements-for-ivey-case-studies-63091144