What is one of the primary functions of calcium in the body?

Calcium plays a crucial role in the body, particularly in the development and maintenance of strong bones and teeth. Approximately 99% of the body's calcium is stored in these structures, making it essential for skeletal health. Calcium contributes to bone density and strength, which helps prevent conditions such as osteoporosis. The body continuously remodels bones, and adequate calcium intake is vital for this process to ensure that bones remain strong and healthy throughout life.

This primary function of calcium highlights its importance beyond mere dietary necessity; it is integral to overall physiological health. While calcium may have secondary roles in other bodily functions, such as muscle contraction and nerve transmission, its foundational role in bone and tooth structure is paramount and underlines the significance of maintaining sufficient calcium levels in the diet.