Do you know what is rock salt?
Rock salt is the common name for the mineral “halite”. Its chemical formula is NaCl. It is typically formed by the evaporation of salty water (such as sea water or lake water) which contains dissolved Na+ and Cl- ions. You can find rock salt deposits ringing dry lake beds, inland marginal seas and enclosed bays.
Human body needs salt in order for it to adjust its water pressure inside and outside the cells. An adult should not consume salt more than 6g of a day. About 27% of our body salt is located in the bones. Table salt is a more pure form of rock salt and is edible and essential to the body. On average, a person will consume around twenty grams of salt a day, but the kidneys are only able to expel up to five to seven grams of this salt. The excess salt builds up as deposits in the arteries, causing them to harden and increasing blood pressure.