Lestrin is a dietary supplement containing two important naturally occurring plant substances beta sitosterol 25mg and beta sitostanol 79mg these plant sterolsstanols are present in lestrin in the same ratios as are found in nature they may help maintain normal cholesterol levels as part of a healthy diet and lifestyle lestrin provides the plant sterolsstanols in a convenient tablet form that can be taken whenever you want with meals it also does not involve eating extra dairy produc