Final answer:
Calcium is the most abundant mineral in the human body, essential for bone health, muscle function, and nerve transmission.
Step-by-step explanation:
The most abundant mineral in the human body is calcium. Calcium plays a vital role in various biological functions such as bone mineralization, maintaining healthy teeth, regulating the heart rate, blood coagulation, and the contraction of smooth and skeletal muscles, as well as nerve impulse conduction. Major minerals like calcium are needed in the body each day in amounts larger than 100 milligrams, and they are found in various foods. The normal level of calcium in the blood is about 10 mg/dL.