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Metabolism & Renalmmol/L

Ionized Magnesium

Ionized magnesium is the unbound, biologically active fraction of magnesium acting directly on cellular neuromuscular targets.

Common laboratory aliases and abbreviations:Magnésium ioniséMagnésium libreIonized magnesiumMg2+ libreMagnesio ionizadoMagnesio libre sérico

Test your personal value

Enter the number from your lab report to instantly see how it compares to reference ranges.

mmol/L
0.57mmol/L
0.48
0.65
‹ LowRange: 0.48 – 0.65 mmol/LHigh ›

Physiological Reference Ranges

The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.

Adults (general)

0.48 – 0.65 mmol/L

Adult females

0.48 – 0.65 mmol/L

Adult males

0.48 – 0.65 mmol/L

Common alternative units:
mg/dL(×0.411 mmol/L)

What does a low result mean?

A slight dip can occur during periods of prolonged stress, fatigue, or transient nighttime muscle cramps.

What does a high result mean?

A slightly higher number is uncommon and typically follows heavy intake of magnesium salts or antacids.

Questions ready for your doctor

Bring these questions to your next consultation to discuss with your healthcare practitioner:

  • Does this verify that my active bioavailable magnesium fraction is balanced?
  • Would a bioavailable chelated magnesium supplement be helpful for muscle tone?
  • Does this align consistently with my total serum magnesium?

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Important information — Medical notice

ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.