In biology, magnesium plays an extremely important role because it is the core atom of the chlorophyll molecule. The chlorophyll structure uses magnesium atoms in a germanium-like bond as the mother core of the molecule. This magnesium atom is bonded in a germanium-like form. Acts as a powerful catalyst. The function of magnesium in chlorophyll is tens of thousands of times that of ordinary magnesium ions. There are metabolic systems using magnesium as a catalyst everywhere in the human body. More than a hundred important metabolisms must be carried out by magnesium. Magnesium participates in almost all metabolic processes of the human body.

In human cells, magnesium is the second most important cation (potassium is the first), and its content is also second to potassium. Magnesium has a variety of special physiological functions. It can activate a variety of enzymes in the body, inhibit abnormal nerve excitability, maintain the stability of nucleic acid structures, and participate in protein synthesis, muscle contraction and body temperature regulation in the body. Magnesium affects the "channels" through which potassium, sodium, and calcium ions move inside and outside cells, and plays a role in maintaining biological membrane potential.