Black salt, also called as Kala namak in Hindi, is a variety of Indian volcanic stone salt and due to the presence of iron and other minerals, the salt is pinkish gray in color. No chemicals of any sort goes into the making of this salt.
Black salt is considered as a cooling spice in ayurvedic medicine and is used as a digestive aid. It helps in relieving intestinal gas and heartburn. However, excess usage of any salt is not good for the general health.
