Role, absorption, and transport of calcium in the human body: A review

Calcium, which is one of macrominerals with a high percentage in the human body, plays various physiological roles. As a result, it has become a social concern. In this paper, the role of calcium, its regulation in cells and calcium-rich foods were summarized. In human body, calcium absorption occurs throughout the small intestine via 4 predominant pathways including calbindin-involved pathway, paracellular pathway, transcaltachia and vascular transport.