The mineral crucial for bone health and density is calcium. This essential mineral plays a significant role in maintaining strong bones and teeth, as well as supporting various bodily functions such as muscle contraction and nerve transmission. Adequate calcium intake, especially during childhood and adolescence, is vital for optimal bone development and growth. Furthermore, vitamin D is essential for enhancing calcium absorption. A balanced diet rich in dairy products, leafy greens, and fortified foods can help individuals meet their calcium requirements.