1998 study determined that 22.3% of Americans were obese, a more than 50% increase over the rate in the preceding decade. The frequency of obesity is rising in all age groups and all ethnic groups.These statistics, com- bined with the population’s desire for an easy “cure” of this problem, have led to a ballooning market for dietary supple- ments promoted as weight-loss agents. Chitosan is one of the multitude of weight-loss products to emerge. It dif- fers from many other dietary supple- ments in that it is not claimed to increase energy expenditures. It also differs from Chitosan for weight loss and cholesterol management many current prescription drug treat- ments focused on inducing satiety. Chi- tosan is promoted as a product that binds to lipids in the gastrointestinal tract, decreasing their absorption and lowering body weight