Hypermagnesemia is a rare but potentially serious condition characterized by elevated levels of magnesium in the blood. It is caused by excessive magnesium intake from supplements or medications like antacids and laxatives, or by kidney dysfunction that prevents proper magnesium excretion. The Magnesium, Serum test is the most important test for diagnosis because it directly measures magnesium concentrations in the blood.
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Hypermagnesemia is caused by excessive magnesium intake from supplements, antacids, or laxatives, or by kidney dysfunction that prevents the body from excreting excess magnesium properly. People with chronic kidney disease are at highest risk because their kidneys cannot filter magnesium effectively. Other causes include overuse of magnesium-containing medications like milk of magnesia, Epsom salt baths in people with kidney problems, and rare cases of severe dehydration or diabetic ketoacidosis.
The Magnesium, Serum test is the most important test for hypermagnesemia because it directly measures the concentration of magnesium in your blood serum, which is the standard diagnostic method. This test quickly identifies elevated magnesium levels and helps determine the severity of the condition. For a more comprehensive assessment, the Magnesium, RBC test measures magnesium inside red blood cells and can detect chronic magnesium excess that may not show up in serum tests. The Mineral Profile, RBCs provides the broadest picture by evaluating magnesium alongside other minerals, helping identify underlying causes like kidney dysfunction or hormonal imbalances.
You should get tested if you experience muscle weakness, nausea, lethargy, irregular heartbeat, or confusion, especially if you take magnesium supplements or medications containing magnesium. Testing is essential if you have kidney disease and use antacids, laxatives, or other magnesium-containing products regularly. You should also consider testing if you notice symptoms like slow reflexes, low blood pressure, difficulty breathing, or extreme drowsiness, as these can indicate dangerously high magnesium levels requiring immediate medical attention.
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What this means
Your testosterone levels are slightly below the optimal range. While this is not necessarily cause for concern, it may contribute to occasional fatigue, reduced motivation, or lower muscle mass over time.
Recommended actions
Increase resistance or strength training
Prioritize 7–8 hours of quality sleep per night, try to reduce stress
Include more zinc- and magnesium-rich foods (like shellfish, beef, pumpkin seeds, spinach)
Consider retesting in 3–6 months
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