Plant stanol/sterol esters are effective in lowering serum total cholesterol and LDL cholesterol in both healthy adults and in women with coronary heart disease (CHD). A reduction of up to 10% total cholesterol is observed when 2-3 g of plant stanol/sterol esters are consumed daily. There is a dose response in serum cholesterol with a daily consumption of 1.6 to 3.2 g plant stanol/sterol esters.
This information is from the 2001 Hyperlipidemia project.