Salt is a mineral composed primarily of sodium chloride (NaCl), a chemical compound belonging to the larger class of salts. Salt in its natural form as a crystalline mineral is known as rock salt or halite. Salt is present in vast quantities in seawater, where it is the main mineral constituent.

Salt has long been used for flavoring and for preserving food. It has also been used in tanning, dyeing and bleaching, and the production of pottery, soap, and chlorine. Today, it is widely used in the chemical industry.

It commonly features at the table or in the kitchen as free-flowing table salt, rock salt, sea salt, or kosher salt. High levels of salt, or sodium, come hidden in everyday foods, from fast food to frozen chicken.

Salt is a mineral composed primarily of sodium chloride (NaCl), a chemical compound belonging to the larger class of salts. Salt in its natural form as a crystalline mineral is known as rock salt or halite. Salt is present in vast quantities in seawater, where it is the main mineral constituent.

Salt has long been used for flavoring and for preserving food. It has also been used in tanning, dyeing and bleaching, and the production of pottery, soap, and chlorine. Today, it is widely used in the chemical industry.

It commonly features at the table or in the kitchen as free-flowing table salt, rock salt, sea salt, or kosher salt. High levels of salt, or sodium, come hidden in everyday foods, from fast food to frozen chicken.