Black salt also popularly known as kaala namak has known to be a type of Indian volcanic rock salt. Unlike its name the black salt has a pinkish-grey hue due to the presence of iron and other minerals. It adds a distinctive flavour to most dishes and is known to be a healthy form of salt. While it has been known for its various health benefits there is no scientific research that been conducted.Most people use it as an effective home remedy for stomach problems and is known to beood for people with high blood pressure levels considering it is low on sodium.