What effects do plant sterols and stanols have on cholesterol levels?
Studies have shown that plant sterols and stanols can reduce low-density lipoprotein (LDL) cholesterol levels when taken in recommended doses. In a meta-analysis of natural therapies for hyperlipidemia, plant sterols and stanols were found to be more effective than policosanol in reducing LDL cholesterol levels. Plant stanol esters have also been found to affect serum cholesterol concentrations in a dose-dependent manner. The effect of plant stanol tablets on LDL cholesterol lowering in patients on statin drugs was studied in 2006 and found to be effective. Overall, plant sterols and stanols can be used to help reduce LDL cholesterol levels in those with hyperlipidemia.  