Popular in South East Asian cooking, kaffir lime leaves are used to impart their powerful flavors in soups, broths, stir fries, pickling juices, and marinades. Like bay leaves, the leaves are typically consumed-the heat and moisture during the cooking process helps release their flavor. Kaffir lime leaves are said to have various health benefits such as lowering inflammation, reducing stress, aiding in digestive issues, promoting healthy hair and skin, and promoting oral health.