Black salt has antioxidant properties and has surprisingly low sodium levels. It also contains important minerals like iron, calcium, and magnesium, which are essential to healthy bodies. Black salt stimulates bile production in the liver, and helps control heartburn and bloating.This sulphur content is what gives the salt its unique pungent smell and tangy taste, reminiscent of rotten eggs. Indian black salt can vary in colour – some may not be even black at all. Any shade of brownish pink to dark violet can be found and it is available in whole chunks or in powdered form. (Note that while high concentrations of hydrogen sulphide can be toxic, the amount found in black salt is considered negligible in its effect on our health.) Black salt is used in many Indian and Asian cuisines as a flavour enhancer. Indian kala namak goes in many dishes such as pickles, salads, chutneys, raitas, and fruit salads.