Chitosan is a dietary fiber derived from the shells of crustaceans that has been shown in non-clinical studies to bind to fat and cholesterol in the digestive tract. NOW&ampreg; Chitosan contains LipoSan ULTRA&ampreg;, a patented high-density form of Chitosan that binds up to five times more fat than conventional Chitosan according to laboratory testing. A published clinical study has demonstrated that LipoSan ULTRA&ampreg;, taken as directed, may aid in the support of healthy body weight and serum cholesterol levels already within the normal range. NOW has also included Chromium in this formula.&ampnbsp; Chromium is an essential trace mineral that works with insulin to support healthy blood glucose levels and plays an important role in the proper utilization of protein, fat, and carbohydrates.*