Chicken soup is a worldwide dish used in folk medicine to treat respiratory infections. In ancient and medieval times, it was used to treat leprosy. Anecdotally, it is claimed that chicken soup promotes healthy skin because it is rich in collagen and hyaluronic acid. One clinical study found that consumption of chicken soup by human individuals increased skin elasticity and decreased facial pigmentation. More research is needed to confirm these benefits and better define the role chicken soup consumption might have in promoting healthy, youthful skin.