A tea made from the leaves of the Boldo tree (Peumus boldus) served in South American countries to sooth upset stomachs and relieve hangovers. The boldo tree belongs to the same family as cinnamon and bay leaf.
It is also used in Latin America and Spain to benefit the gallbladder. In some South American countries (Brazil, Uruguay, Paraguay, and Chile) it is often mixed with "mate", adding a new dimension to this popular baverage.
Because it contains certain chemicals (including alkaloids), people with kidney or liver disease and pregnant women should avoid drinking boldo.