Calcium is the most abundant mineral in the human body, and nearly 99% of it is stored in our bones and teeth. It provides strength, maintains bone density, and helps protect against conditions such as osteoporosis and dental caries. Beyond bone health, calcium also plays crucial roles in muscle contraction, nerve function, blood clotting, and even maintaining a healthy heartbeat. Without sufficient calcium, essential processes in our body—from healing wounds to transmitting nerve signals—cannot function properly.