Chitosan has an obviously absorptive effect to fat

and has been used to make latest diet pills .It can absorb bile acid

fat

and cholesterol into flocculation

preventing the digestion and absorption and promoting their excretion .Mixing chitosan and other substance

which has weight loss function or being able to prevent side effect of chitosan improve its absorptive capability to lipid and the weight loss effect .In addition

chiotsan derivatives can also mend the efficiency of absorbing lipid .This article will introduce main chitosan compounds and modified chitosan weight loss merchandise

and also bring forward to prepare organic solubility chitosan derivatives can dissolve in the lipid to improve its efficiency of absorption .