Magnesium is an essential mineral that plays a critical role in many physiological processes, including muscle function, nerve signaling, energy production, and bone health. The body regulates magnesium levels carefully, with the kidneys filtering and excreting excess magnesium through urine. Most magnesium is stored in bones, with only a small amount circulating in the blood and excreted as waste.
Measuring magnesium levels in urine provides insights into dietary intake, kidney function, and magnesium balance in the body. Abnormal urinary magnesium levels may indicate issues such as magnesium deficiency, kidney problems, or metabolic disorders.