If you were to look into a microscope at sea salt (pictured left) you would see it has irregular and isolated crystalline structures disconnected from the natural elements surrounding them. Thus, however many vital minerals it may contain, they cannot be absorbed by your body unless the body expends tremendous energy to vitalize them. Your body's net gain is small compared to the great loss of energy.

seasalt
rocksalt

Because the crystalline structure of rock salt is balanced (pictured right), it is not isolated from the 84 inherent mineral elements, but is connected to them in a harmonious state. This means the energy content in the form of minerals can be easily metabolized by your body. When you use this salt it has a vital energetic effect. Your body gets an ample net gain with little energy loss.