How long does beta sitosterol stay in the system?

When not absorbed by the system, beta sitosterol binds with cholesterol and keeps it from being absorbed by the body. If it is passed through the digestive system without being absorbed which could take 2 to 3 days. When absorbed beta sitosterol is useful for an aging prostate. It may block certain enzymes which cause the prostate to grow. Beta sitosterol is very popular for heart health and prostate health management.