Salt is an essential mineral in the function of muscles and nerves, the regulating of the levels of bodily fluids and the management of blood pressure. Too little salt can lead to serious health conditions including hyponatremia – the symptoms of which range from headaches to heart failure.
Regarding sea salt specifically, sea salt contains over 80 trace elements including: magnesium, calcium, potassium, iron, zinc and iodine. Each of which is plays an essential role human health. For example, magnesium in cell and brain function, calcium in bone formation and iodine in cell metabolism.
Finally, sea salt with its trace elements has a stronger flavour and so less is needed to season our food.