Which group of individuals is at elevated risk for hypomagnesemia due to existing health issues?

Individuals who regularly take diuretics are at an elevated risk for hypomagnesemia due to the way these medications affect electrolyte balance in the body. Diuretics increase the excretion of fluids through the kidneys, which can result in the loss of essential electrolytes, including magnesium. As magnesium is primarily absorbed in the intestines, and excess loss through urine can lead to lower serum magnesium levels, individuals on diuretics must be monitored for this deficiency.

In contrast, those consuming high amounts of magnesium are less likely to develop hypomagnesemia, as their intake exceeds the body's needs. A high carbohydrate diet does not inherently lead to low magnesium levels unless the diet is chronically low in magnesium-rich foods. Regular exercise generally does not contribute to hypomagnesemia, as physical activity may not significantly alter magnesium levels unless there are other underlying health issues or dietary deficiencies involved.