Slippery elm bark powder contains mucilage, a gelatinous like substance that reacts with water to form a slippery gel-like substance, when taken orally it expands in the digestive tract and helps provide a protective barrier for irritated gastric mucous membranes. When taken after meals Slippery elm capsules may soothe an irritated or acidic stomach and help relieve the digestive symptoms of heartburn and reflux. Slippery elm bark is rich in nutrients and easy to digest which makes it useful during times of minor digestive discomfort and convalescence, or when only bland food is desired. The inner-bark of the Slippery elm tree is a native of North America, and was widely used by native Indians and early American settlers for it's soothing and anti-inflammatory qualities.