Which mineral is the most abundant in the human body?

Calcium is the most abundant mineral in the human body, making up about 1.5% to 2% of a person’s total body weight. It plays a critical role in various physiological functions, including bone and teeth formation, where it provides structure and strength. Additionally, calcium is essential for muscle contraction, nerve transmission, and blood clotting.

In bones, calcium is primarily found in the form of hydroxyapatite, a mineral complex that combines calcium and phosphate. This mineral composition is vital for maintaining the integrity and density of bone tissue. While other minerals, such as iron, magnesium, and sodium, are important in different biochemical pathways and physiological functions, none are found in as high concentrations as calcium. Therefore, its predominance in the human body underscores its critical importance in health and metabolic processes.