Calcium is a critical mineral that plays a significant role in bone health and mineralization. It is essential for developing and maintaining strong bones and teeth, and it also aids in muscle contractions and nerve signaling. Adequate calcium intake can help prevent conditions like osteoporosis in older adults by maintaining bone density. Furthermore, calcium contributes to the regulation of heart rhythms and supports blood clotting. Including calcium-rich foods in the diet is vital for achieving optimal health and preventing deficiency-related issues.