Final answer:
More than half of the body's magnesium is stored in the bones, with about 70% of it combined with calcium and phosphorus in the form of complex salts.
Step-by-step explanation:
Over half of the body's magnesium is stored in the bones. Approximately 70% of the total magnesium content of the body is combined with calcium and phosphorus in the bone as complex salts. Magnesium plays a crucial role in various bodily functions and is also involved in over 300 enzymatic reactions in the body. It is important for nerve function, regulating blood pressure, and supporting the immune system. In addition to the majority being stored in bones, the remainder of magnesium is located in soft tissues and body fluids, serving as the principal cation of soft tissue.