Minerals
Magnesium
A mineral involved in muscle, nerve, and energy function.
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About this biomarker
Magnesium supports many enzyme reactions in the body. It plays a role in muscle contraction, nerve signaling, and heart rhythm.
Why it matters
Abnormal magnesium can affect muscle symptoms, heart rhythm, and other electrolyte levels.
What lower levels may suggest
Low magnesium may be seen with poor intake, gastrointestinal losses, alcohol use, or certain medications.
What higher levels may suggest
High magnesium may be seen with reduced kidney function or excess intake from supplements or medications.
Common tests
Serum magnesium, electrolyte testing, metabolic panels
Related biomarkers
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