It's harvested from the ocean or mines, so it counts as a harvest. Use it for flavor, topping a dish, food preservation, a table decoration, or even science experiments. Unadultered sea salt does not contain harmful calcium silicate as a synthetic desiccant additive for anti-caking purposes. Research has shown that standard table salt's calcium silicate can create scarring and constriction of the cardiovascular system (blood vessels). Sea salt also has a wider variety of beneficial minerals for biological functions.