Burdock root is edible and often used in cuisine, mainly in Japan and Eastern Europe. It is very safe to consume and is often found in formulas where its primary action is that of a blood cleanser. It is a member of the thistle family which provides us with a number of famous detoxifying herbs, including milk thistle and artichokes. Research has shown excellent results with many kinds of tumors as well as infections. The root also also demonstrated a prebiotic effect in promoting the growth of healthy bacteria.