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Metabolic Health

Magnesium Test

A mineral involved in 300+ enzyme reactions, including muscle, nerve, and heart function.

Physician reviewed
Results in 1–3 days
4,000+ lab locations

What is Magnesium?

A mineral involved in 300+ enzyme reactions, including muscle, nerve, and heart function.

Magnesium Reference Range

These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.

PopulationRange
age 18+1.70 – 2.20 mg/dL

Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.

What your Magnesium result may mean

Higher than range

Usually reflects supplement excess or kidney impairment.

Lower than range

Common in alcohol use, diuretic use, GI losses, or poor diet. Can cause muscle cramps and arrhythmias.

Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.

Related Metabolic Health biomarkers

Markers commonly tested alongside Magnesium.

Frequently asked

No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor.

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