Magnesium

Magnesium measures the level of this essential mineral in your blood. Magnesium is involved in over 300 enzyme reactions, including muscle and nerve function, blood sugar control, and bone developmen…

Category: Vitamins & Minerals

Also known as: magnesium, mg, serum magnesium, mag, magnezijum

Reference range: 1.7–2.2 mg/dL (Source: ABIM)

Standard unit: mg/dL

High values may indicate

High magnesium levels (hypermagnesemia) may indicate kidney failure, excessive supplementation, hypothyroidism, or Addison's disease, and can cause muscle weakness, low blood pressure, and cardiac arrest.

Low values may indicate

Low magnesium levels (hypomagnesemia) may indicate poor dietary intake, alcoholism, malabsorption, chronic diarrhea, diabetes, or medications such as diuretics, and can cause muscle cramps, tremors, and heart arrhythmias.

Frequently asked questions

What is a normal Magnesium level?
A typical reference range for Magnesium is 1.7–2.2 mg/dL (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
What units is Magnesium measured in?
Magnesium is most commonly reported in mg/dL. Labs in different countries may use other units — you can convert between them with BloodId's blood test unit converter.
Where do Magnesium reference ranges come from?
BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
Can I track Magnesium over time?
Yes. Upload results from any lab and BloodId charts your Magnesium over time against its reference range, so you can see whether the trend is rising, falling, or stable.

Related biomarkers

Source: MedlinePlus, U.S. National Library of Medicine

How we source our data

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Chart your Magnesium over time

Convert Magnesium units

Track your Magnesium over time with BloodId