Chloride
Chloride is the main extracellular anion and works with sodium and bicarbonate to maintain fluid balance, blood pressure, and acid-base status. Abnormal levels often accompany kidney disease, dehydration, vomiting, or metabolic acidosis and alkalosis. Chloride is interpreted alongside sodium, bicarbonate, and the anion gap to characterize acid-base and volume disorders.
Optimal range: who says what
No institution or named practitioner we track states an optimal target for Chloride. How we verify ranges.
- General guidance, no named sourceWithin referenceNo separate optimal established
- Lab reference interval96-106 mEq/LWhat a lab report flags against. A lab interval is not an optimal target.
19 of 21 itemized panels
Electrolytes & Minerals
Why Chloride matters
An essential electrolyte that works with sodium to maintain fluid balance, blood pressure, and acid-base status. Abnormal levels often occur with kidney disease, dehydration, or metabolic acidosis/alkalosis.
Which Providers Test Chloride?
Cheapest: Oura Health Panels at $99/year. Most comprehensive: Function Health, 160+ biomarkers for $365/year.
19 panels that include it, cheapest first
| Provider | Annual Cost | Total Biomarkers | $/Biomarker |
|---|---|---|---|
| $99 | 50 | $1.98 | |
| $190 | 100+ | $1.90 | |
| $250 | 65 | $3.85 | |
| $297 | 100+ | $2.97 | |
 Labcorp OnDemand | $338 | 50+ | $6.76 |
 Superpower | $349 | 100+ | $3.49 |
| $349 | 75+ | $4.65 | |
 WHOOP Advanced Labs | $349 | 65 | $5.37 |
 Function Health | $365 | 160+ | $2.28 |
| $365 | 100+ | $3.65 | |
| $375 | 108 | $3.47 | |
| $449 | 83 | $5.41 | |
| $495 | 80+ | $6.19 | |
| $499 | 100+ | $4.99 | |
| $700 | 138 | $5.07 | |
| $895 | 100+ | $8.95 | |
| $1188 | 70+ | $16.97 | |
| $1198 | 40+ | $29.95 | |
| $1950 | 130+ | $15.00 |
$/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.
2 itemized panels do not include Chloride
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 Chloride. 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
Experts discussing Chloride
Podcast episodes where clinicians and researchers cover this marker in depth. Curated by hand; an episode is listed only when the marker is a substantial topic, not a passing mention.
- Using Salt to Optimize Mental & Physical PerformanceDisclosure: Huberman Lab has been sponsored by Function Health, which appears in our blood-test comparisons.
Frequently Asked Questions
What is the optimal range for Chloride?
No institution or named practitioner we track states an optimal target for Chloride. General guidance without a named source: Within reference (No separate optimal established). Lab reference interval: 96-106 mEq/L. That is what a lab report flags against, not an optimal target.
Which blood test providers include Chloride?
19 of the 21 blood testing panels we itemize marker by marker include Chloride in their panels. This biomarker is widely available across major providers.
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 Aug 26, 2026 · First published Sep 30, 2025