Now Foods Magnesium Liquid with Trace MineralsNOW Liquid Magnesium with Trace Minerals is a natural mineral concentrate sourced from the Great Salt Lake and produced by using a proprietary solar evaporation process. This process also removes 99% of the naturally occurring sodium, while preserving its remaining 72 naturally occurring Trace Minerals in their bioavailable forms. The presence of Magnesium and other trace minerals in the body is necessary for normal biochemical reactions, maintenance