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Also reported in: mEq/L, mmol/L
Your intracellular magnesium is adequate for normal cellular energy production, nerve function, and sleep quality.
Very low RBC magnesium indicates noticeable depletion of intracellular magnesium stores — even more significant than low serum magnesium. At this level, cellular energy production (ATP synthesis), nerve conduction, and cardiac rhythm are very impaired.
Seek urgent medical care. IV or high-dose magnesium replacement under supervision is needed.
RBC Magnesium: {{value}} {{unit}} — very low (ref: {{low}}–{{high}})RBC magnesium measures intracellular magnesium — a more accurate reflection of true body stores than serum magnesium, which can appear normal even when cells are depleted. Low cellular magnesium affects energy production, sleep, muscle function, mood, and blood sugar regulation.
Supplement with magnesium glycinate (200–400 mg daily). Increase nuts, seeds, and leafy greens. Retest RBC magnesium (not serum) in 3 months to monitor true cellular restoring levels.
RBC Magnesium: {{value}} {{unit}} — below reference range (ref: {{low}}–{{high}})Borderline low RBC magnesium can manifest as poor sleep, mild anxiety, muscle twitches, and reduced stress resilience. It is very common in people with high stress levels or processed food diets.
Consider magnesium glycinate 200 mg before bed. Increase magnesium-rich whole foods. Retest in 3 months.
RBC Magnesium: {{value}} {{unit}} — borderline lowYour intracellular magnesium is adequate for normal cellular energy production, nerve function, and sleep quality.
No action needed. Continue eating magnesium-rich foods.
RBC Magnesium: {{value}} {{unit}} — within reference rangeYour RBC magnesium is in the healthy midrange, reflecting well-stocked intracellular magnesium stores that support optimal cellular energy production, restful sleep, and relaxed nerves.
Excellent result. No action needed.
RBC Magnesium: {{value}} {{unit}} — optimalBorderline high RBC magnesium is almost always from supplement intake. It is generally not harmful at this level.
Consider whether your current supplement dose needs adjustment. No immediate concern.
RBC Magnesium: {{value}} {{unit}} — borderline highHigh RBC magnesium is almost always from excessive supplementation. While not as acutely dangerous as high serum magnesium, it suggests supplement intake should be reduced.
Reduce magnesium supplementation. Ensure kidney function is being checked if supplementing at high doses.
RBC Magnesium: {{value}} {{unit}} — above reference range (ref: {{low}}–{{high}})Very high RBC magnesium is very unusual and may reflect noticeable kidney failure affecting magnesium excretion or massive over-supplementation.
Seek medical evaluation. Check kidney function and stop all magnesium-containing supplements.
RBC Magnesium: {{value}} {{unit}} — very high (ref: {{low}}–{{high}})Upload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.