Constipation

Thanks to its high fiber content, lettuce and its juice can help stimulate the function and motility of the intestinal tract, relieve constipation and cleanse the colon. Just as vitamin A helps to accomplish other things in the body, so too does it help to prevent cancer. Fruits and vegetables which house large amounts of vitamin A are well known for their ability to retard the growth of certain cancers, as well as to lower the risk of lung and oral cavity cancers.