Supports Digestion Herbal Supplement Formulated by Michael Tierra L.Ac, O.M.D The use of herbal bitters has been an integral part of almost every herbal tradition in the world. Extensively used in Europe, herbal bitters help enhance digestion and assimilation by stimulating taste receptors on the tongue. This increase the flow of bile from the liver, which supports both digestion and the body's natural cleansing processes. Bitters are especially beneficial when taken after a heavy meal. Planetary Herbals Digestive Grape Bitters provides you with three main classes of bitter herbs - tonic, warming, and aromatic bitters.