Advance in cholesterol - lowering effect of phytosterols

Phytosterols belong to the steroids and have many important physiological functions. The chemical characteristics , main sources, absorption and metabolism of phytosterols were reviewed. The cholesterol-lowering effect of phytosterols and its action mechanism were also summarized. Moreover, the safety of phytosterols was evaluated and its application practicability in functional food and feed additives was analyzed.