What are the normal magnesium levels in adults?

Normal magnesium levels in adults typically range from 1.5 to 2.5 mg/dL. Magnesium is an essential mineral that plays a critical role in numerous physiological processes, including muscle and nerve function, blood glucose control, and blood pressure regulation, as well as being vital for protein synthesis and bone health.

Maintaining appropriate magnesium levels is crucial for overall health, and both deficiencies and excess levels can result in significant clinical issues. Understanding the normal range helps healthcare providers in diagnosing conditions that may arise from magnesium imbalances, such as hypomagnesemia or hypermagnesemia, and guiding treatment decisions.

Other ranges provided in the choices—0.5-1.5, 1.0-2.0, and 2.0-3.0—do not align with established clinical guidelines for normal magnesium levels in adults, thus reinforcing that 1.5-2.5 mg/dL is the accepted normal range.