Phytosterol is an active ingredient widely found in plant roots, stems, leaves, fruits and seeds, and is an indispensable nutrient for maintaining vascular health. The World Heart Federation, the American Heart Association, the European Atherosclerosis Society and other authorities believe that: phytosterols can effectively reduce the content of bad cholesterol in the blood, reduce blood viscosity, and thus reduce the risk of cardiovascular and cerebrovascular diseases. However, such an important nutrient can not be synthesised by the human body itself, and can only be ingested from food. Prevention of tumours: phytosterols can affect the material metabolism, growth and apoptosis of tumour cells by changing the signal transduction pathway of tumour cells Chemicalbook process. Prevention of prostate hypertrophy: phytosterols have a certain positive significance in reducing the incidence of prostate hypertrophy and prostate cancer in men. Inhibit breast hyperplasia: Estrogen plays a big role in the formation of breast hyperplasia and tumours, phytosterols prevent breast hyperplasia and tumour formation by regulating estrogen levels in the body. Immune regulation: phytosterols have a strong immune regulation function on the human body, which can effectively fight inflammation, promote wound healing, make muscle growth, enhance capillary circulation and so on. Antioxidant: phytosterols have good antioxidant and anti-corrosion effects, and can be added to food to prevent food spoilage.