Magnesium (Mg)

Cofactor in 300+ enzymatic reactions. Commonly under-tested despite frequent subclinical deficiency.

Units

mg/dL

Reference (Male)

1.7 – 2.2 mg/dL

Reference (Female)

1.7 – 2.2 mg/dL

What it measures

Cofactor in 300+ enzymatic reactions. Commonly under-tested despite frequent subclinical deficiency.

What a high value can mean

Kidney disease, magnesium-containing antacids/laxatives.

What a low value can mean

Diuretics, alcohol use, PPI use, malabsorption, type 2 diabetes.

Conditions it helps assess

Muscle cramps
Arrhythmia risk
Migraines

Reading these numbers in context

Reference ranges describe the central 95 % of a healthy reference population — 5 % of perfectly healthy people fall outside any given range by definition. A single mildly abnormal value is rarely meaningful on its own. blood-test.life always interprets values together with related biomarkers before flagging.

Related biomarkers in Electrolytes

Sodium Na Primary extracellular cation. Dysregulation affects neurologic function. Potassium K Primary intracellular cation. Tight regulation is critical for cardiac rhythm. Calcium Ca Critical for nerve, muscle, bone, and clotting. Interpret with albumin or ionized calcium.