Glycyrrhizin is currently reglemented in Europe as part of licorice-flavored foods, with concerns and restrictions of its content due to corticoid-like effects. I remember it being allowed as an intense sweetener in the 1970's, but I have not managed to find litterature on evolution of its legislative status. Anyone has a reference? On why and how it was reglemented, and how this forms part of the narrative about intense sweeteners / artificial sweeteners.