Calcium is the mineral essential for strong bones. It plays a crucial role in bone formation, strength, and density. About 99% of the calcium in the human body is stored in bones and teeth, providing structural support. Adequate calcium intake is vital throughout one’s life, especially during childhood, adolescence, and old age, when bone density is most actively developed or lost. It can be obtained from dietary sources such as dairy products, leafy greens, and fortified foods. A balanced intake of calcium, along with vitamin D, promotes optimal bone health.