Researchers studied a natural compound from licorice called Glycyrrhiza polysaccharide (GP) to see if it could help restore immune function in mice weakened by chemotherapy. GP treatment improved intestinal health, boosted immune cells, and changed the gut bacteria composition to favor beneficial strains. The study shows that GP works partly by modifying which bacteria live in the gut, which then support the immune system. This research suggests GP could be useful as a natural supplement for strengthening immunity and treating intestinal inflammation.