electrolytes · Mg · Mg2+
Magnesium
A mineral involved in hundreds of enzyme reactions, including muscle and nerve function and heart rhythm. Blood magnesium is only a rough guide to total body stores, but low levels can affect potassium and calcium too.
This page is general wellness education, not medical advice. Your own lab’s reference range and your clinician’s interpretation always take precedence.
Typical reference range
| Group | General range |
|---|---|
| Adults | 1.7 – 2.2 mg/dL |
Units: mg/dL. Ranges vary by lab and assay — read yours against the range printed on your own report.
What high Magnesium can mean
- Reduced kidney function
- Excess magnesium supplements/antacids
What low Magnesium can mean
- Poor intake
- GI losses (diarrhea)
- Alcohol use
- Some diuretics
- Poorly controlled diabetes