Salt is an inorganic compound with a cone Salt is an inorganic compound with the chemical formula NaCL. In the human body, salt plays a role in maintaining osmotic pressure, balancing the amount of water in the body and ensuring acid-base balance. Health experts recommend that eating too much salt or not enough salt can have serious effects on health. The chemical formula is NaCL. In the human body, salt plays a role in maintaining osmotic pressure, balancing the amount of water in the body and ensuring acid-base balance. Health experts recommend that eating too much salt or not enough salt can have serious health effects.