Seawater contains a vast array of minerals (see chart below). It is very similar to the make-up of human blood. Rene Quinton did research in the late 1800’s around deep-sea water and proved numerous health benefits from using a water later termed Quiton’s Plasma. He also performed an experiment on a dog where he replaced the dogs’ blood with his Quinton’s Plasma, although controversial it is said the dog lived for another 5 years. You can read more about this interesting topic here.