Hello, Thanks for your query. refined salt which contains only 2 or 3 elements, sea salt contains about 80 mineral elements (potassium, magnesium, calcium, sodium and more) that are essential in small amounts for a variety of functions in the body. These mineral salts and electrolytes are key players in enzyme production as well as immune system, adrenal and thyroid function. And while, compared to food, sea salt is not a major source of minerals, like any whole food, sea salt has a natural balance and a lack of toxic additives, so we are actually nourished by it, rather than depleted. I do hope that you have found something helpful and I will be glad to answer any further query. Take care