Nature's Sunshine Slippery Elm is rich in nutrients and mucilage and is easy to digest. This mucilage forms a slippery substance when combined with water and is soothing to mucus membranes, stomach, intestines and urinary tubules. For centuries people have used Slippery Elm as a nourishing food to support the digestion tract and bowel. Slippery Elm is useful during times of digestive discomfort and convalescence.