Magnesium is an essential element for the animal and vegetable life. The photosynthetic activity of most of the plants is based on the absorption of the energy of solar light, to transform water and carbon dioxide in carbon hydrates and oxygen. This reaction is only possible due to chlorophyll presence, whose pigments have a rich composition in magnesium.
In the animal systems, magnesium also plays an important role in enzymatic catalysis reactions involving the phosphate group, which are associated to the energy transfer and the stimulus at the muscular level.
The lack of magnesium in the human body can induce diarrhea or vomits as well as hyperirritability or a slight tissue calcification. In extreme cases, this deficiency causes tremors, disorientation or even convulsions eventually leading to death.
An adult daily diet must include 300 mg of magnesium for a good electrolytic balance. The body quickly eliminates the excess of magnesium. However, it should be pointed that magnesium compounds as the sulfate (Epsom salts) or the hydroxide, are laxatives and quite effective purgatives, so it should be used with moderation.