Black salt, also known as kala namak, is mined in India and is significantly used in Indian cuisine as a condiment. This pinkish, gray color salt is rich in minerals and has a potent sulfuric flavor. It is mainly added to chaats, chutneys, raitas and many other delicious Indian snacks. Black salt's distinctive aroma and flavor is an imperative ingredient that makes up chaat masala, a popular Indian spice blend. Among other uses, black salt is also found in ayurvedic medicine and used as a laxative, digestive aid and to comfort heartburn.