Calcium is an essential mineral nutrient for human body, and all cells need calcium. Calcium ion Ca is the trigger of many biochemical and physiological processes in organisms, such as triggering muscle contraction, releasing hormones, transmitting pulses, promoting blood coagulation, regulating heart rhythm and secreting milk. Calcium is especially necessary for all kinds of advanced organisms.

Modern medical research shows that calcium nutrition is closely related to the functions of more than ten systems such as immunity, nerve, endocrine, digestion, circulation, exercise and reproduction, and calcium ions participate in the whole process of life evolution and life movement. Studies in basic medicine and clinical medicine have proved that calcium ions have a great influence on life, that is to say, human health cannot be separated from calcium.

Calcium can be used as deoxidizer for alloy and dehydrating agent for oil.

Extended data:

1808, David of Britain, Bethelius of Sweden and Ponting of France used mercury cathode to electrolyze limestone to prepare electrolyte and extract metallic calcium from cathode amalgam.

Since then, calcium has been identified as an element and named calcium, and the symbol of the element is Ca. Calcium comes from the Latin calx, which means quicklime.

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