Lestrin is a dietary supplement containing two important, naturally occurring plant substances, Beta-sitosterol (25mg) and Beta-sitostanol (79mg). These plant sterols/stanols 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 sterols/stanols in a convenient tablet form that can be taken whenever you want with meals. It also does not involve eating extra dairy products that contribute to your daily fat intake.