A substance found in various nuts, beans, seeds, fruits, and vegetables. It may also be used in dietary supplements. Beta-sitosterol may help lower cholesterol levels in the blood by decreasing the amount of cholesterol absorbed from the diet. It may also slow the growth of some types of cancer cells and kill them. It is a type of phytosterol.
( BAY-tuh-sy-TOS-teh-rol )
Source: NCI Dictionary of Cancer Terms
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