Gastrazyme supplies specific nutrients including vitamin U complex, chlorophyllins and vitamin A, ingredients all known to support the health of GI tract, which may become stressed due to normal, everyday factors.* Early studies have recognized the effectiveness of raw cabbage juice in normalizing gastric and intestinal function.* Glutamine and methionine derivatives present in this juice are believed to be the active principles. Specific attention has focused on methionine S-methylsulfonium (MMS) in the chlorinated form. MMS occurs in a variety of fruits and vegetables, such as cabbage. Studies have demonstrated that MMS supports the normal healing process of the stomach following exposure to nonsteroidal anti-inflammatory agents (NSAIDs).* Traditionally, this compound has been designated "Vitamin U," although it does not meet the classic definition of a vitamin.