400mg or deglycyrrhizinated Licorice root, has also been shown to raise mucus production, which may provide an improved protective barrier between the delicate lining of the esophagus and the acid stomach contents. (15) The flavonoid molecules in deglycyrrhizinated licorice encourage a healthy inflammatory response by inhibiting the production of pro-inflammatory signaling molecules such as leukotrienes, prostaglandins, and interleukins in the digestive system. (16)

15. Steroids. 1994 Feb;59(2):136-41

16. J Ethnopharmacol. 2009 Sep 7;125(2):218-23