FYI from the book IBD remisdion diet
L-Glutamine The primary nutrient for cells that line the gastrointestinal tract, L-glutamine is essential for DNA synthesis, cell division and cell growth, which are all necessary for wound healing and tissue repair. It readily crosses the blood-brain barrier, so is also essential for proper brain activity and mental function. L-glutamine helps to maintain the proper pH level in the body (acid/alkaline balance), enhances antioxidant protection and decreases sugar cravings and the desire for alcohol. The main function we're using it for here is to rebuild and repair the mucosal lining of the intestine.