The most abundant mineral found in the human body is calcium. Approximately 99% of the body's calcium is stored in the bones and teeth, where it provides structural strength and support. The remaining 1% is found in the bloodstream and soft tissues, playing essential roles in muscle contraction, nerve function, and blood clotting. A balanced intake of calcium is crucial for maintaining bone density and overall health, with dairy products, leafy green vegetables, and certain fish being excellent dietary sources. Insufficient calcium can lead to conditions such as osteoporosis, emphasizing the importance of adequate dietary intake throughout life.