electrolytes · PHOS · PO4
Phosphorus
A mineral that partners with calcium for bones and energy metabolism, regulated by the kidneys and parathyroid. Phosphorus and calcium are usually interpreted together, and high levels often relate to kidney function.
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 | 2.5 – 4.5 mg/dL |
Units: mg/dL. Ranges vary by lab and assay — read yours against the range printed on your own report.
What high Phosphorus can mean
- Reduced kidney function
- Underactive parathyroid
- Excess vitamin D
- Cell breakdown
What low Phosphorus can mean
- Overactive parathyroid
- Vitamin D deficiency
- Malnutrition / refeeding
- Alcohol use
- Some antacids