Which mineral's function includes energy release and bone formation?

• A. Magnesium
• B. Calcium
• C. Iron
• D. Sodium

Answer: (A)

Magnesium is the mineral that does both jobs. It acts as a key cofactor needed for enzymes that release energy from nutrients, so it helps with ATP production and overall energy metabolism. At the same time, magnesium supports bone health by becoming part of the bone mineral matrix and by helping regulate calcium metabolism and vitamin D activation, which are crucial for bone formation and strength.

Calcium mainly supports bone structure, iron is essential for oxygen transport and energy use in cells, and sodium is important for fluid balance and nerve function. None of those minerals cover both energy release and bone formation as clearly as magnesium does, making it the best answer.