Black salt KALA NAMAK is very rich in iron and sulfur compounds. Thanks to iron sulfide contained in this natural product, the salt has a pinkish tint. And the sulfur compounds present in Indian salt cause its specific sulfurous smell and characteristic sour “egg” taste. Indian black salt also differs from others in its high content of calcium, magnesium, potassium, iodine, which is necessary for the human body. This mineral is especially valued in India and always present in a home first aid kit. According to Ayurveda, black salt contains elements of fire and water, it is used for it is used for clarity of intellect and good functioning of the digestive system.