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Rhubarb belongs to the genus Rheum, which in turn is part of the family Polygonaceae. It’s a rhizomatous herbaceous perennial plant, native to Asia where more than 5000 years ago was already known and used by Tibetans and Mongolians for its healing properties. In the eighteenth century it started to be cultivated in Europe; the British were the first to use the plant for food purposes. The name comes from the Latin word "reubarbarum" or barbaric root. Rhubarb extract promotes intestinal transit regularity and the body’s cleansing and digestive functions.