Phosphorus
Phosphorus is a mineral needed for bone and tooth structure, ATP energy production, and cell membrane phospholipids. High levels are typical in advanced kidney disease and hypoparathyroidism, while low levels can result from malnutrition, alcohol use, refeeding syndrome, or vitamin D deficiency and cause muscle weakness and bone pain. It is interpreted alongside calcium and PTH.
Optimal range: who says what
Institutions, researchers and practitioners draw the line in different places. Each position is listed with who holds it and, where a document states it, a link. How we verify ranges.
- Institution or study3.0-4.0 mg/dLMid-reference; high-normal phosphorus carries cardiovascular associations in cohort dataFramingham Offspring: cardiovascular risk rose continuously with serum phosphorus even within the normal range
- Lab reference interval2.5-4.5 mg/dLWhat a lab report flags against. A lab interval is not an optimal target.
4 providers include this
Electrolytes & Minerals
Why Phosphorus matters
Critical for bone health, energy production (ATP), and cell function. High levels indicate kidney disease; low levels cause muscle weakness. Important for calcium balance.
Which Providers Test Phosphorus?
Cheapest: Mito Health at $297/year. Most comprehensive: Vitality Blueprint Elite, 138 biomarkers for $700/year.
4 panels that include it, cheapest first
| Provider | Annual Cost | Total Biomarkers | $/Biomarker |
|---|---|---|---|
| $297 | 100+ | $2.97 | |
 Labcorp OnDemand | $338 | 50+ | $6.76 |
 Superpower | $349 | 100+ | $3.49 |
| $700 | 138 | $5.07 |
$/Biomarker is annual cost divided by the panel's advertised biomarker count, not the price of this one test. We track 23 blood test providers (32 plans); 21 of those plans are itemized marker by marker. Compare all of them.
17 itemized panels do not include Phosphorus
WHOOP Advanced Labs · Life Extension Elite · Everlywell · InsideTracker · Function Health · Marek Health Base · Marek Health Comprehensive · Marek Health Complete · Marek Health Executive · Blueprint · Empirical Health · Oura Health Panels · SiPhox Health · Hims Labs · Healthspan · Vitality Blueprint Standard · Ultrahuman Blood Vision Annual
11 providers not itemized in our matrix
We have not itemized these marker by marker (some sell tests one at a time), so this page cannot say whether they offer Phosphorus. Check with them directly.
Life Extension Standard · Quest Health · Ultrahuman Blood Vision · Lifeforce · Hundred Health · Personalabs · Walk-In Lab · HealthLabs · WHOOP Specialized Panels · Marek Health Essential · Vitality Blueprint Upload
Frequently Asked Questions
What is the optimal range for Phosphorus?
Published position: 3.0-4.0 mg/dL (Mid-reference; high-normal phosphorus carries cardiovascular associations in cohort data). Lab reference interval: 2.5-4.5 mg/dL. That is what a lab report flags against, not an optimal target.
Which blood test providers include Phosphorus?
4 of the 21 blood testing panels we itemize marker by marker include Phosphorus in their panels. This biomarker has limited availability.
Related: YouBoost rates lifestyle and supplement interventions by evidence.
Medical Disclaimer
This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs.
Last reviewed Sep 3, 2026 · First published Nov 30, 2025