Vitamins & Nutrients
Vitamin D, 25-OH test cost — $11.20–$39.95
Vitamin D, 25-OH · measured in ng/mL
Aim 40–60 ng/mL — not just above 30.
U-shaped (a sweet spot)Reference range
- NIH summary: <12 ng/mL is too low
- ≥20 ng/mL is adequate for most people
- >50 ng/mL may be too high.
Applies to total serum 25-hydroxyvitamin D, not a D2/D3 component or 1,25-dihydroxyvitamin D. 1 ng/mL = 2.5 nmol/L.
Optimal range / clinical target
These are adequacy/safety categories, not a recommendation to reach 50 ng/mL. A higher value is not automatically better; the appropriate goal depends on the clinical situation.
Examples are educational, not your reporting lab’s interval.
NIH Office of Dietary Supplements: vitamin DWhen Vitamin D, 25-OH matters
Protocols and goals where this marker is worth tracking.
On TRT, HRT, GLP-1s or peptides? Use the Find tests for your goal tool to see suggested biomarkers and build your monitoring list.
Vitamin D, 25-OH test prices
Compare direct-pay test prices, without using insurance. Test prices are shown before separate collection fees.
Tracking more than one biomarker?
Build a list to compare test and panel combinations, with one blood-draw fee in your GoodLabs estimate.
$12 blood draw per visit, added once to your order.
Collection fee is additional; not included in this test price.
Does insurance cover Vitamin D, 25-OH testing?
When a clinician orders Vitamin D, 25-OH for a diagnosis or to follow a known condition, most plans cover it — and many cover routine screening as $0 preventive care for eligible adults. The catch is you need a qualifying reason and an in-network order; a “I just want to see my number” request often isn’t covered, and if you haven’t met your deductible you can end up paying the lab’s full list price anyway.
The direct-pay prices above skip insurance entirely: you pay the cash price, test on your own schedule with no doctor visit, and it’s HSA/FSA-eligible. For a single marker that’s often cheaper — and faster — than a copay plus deductible exposure.
Vitamin D, 25-OH inside a bundle
Every compared membership/panel that includes Vitamin D, 25-OH, cheapest first. Worth it when you want several markers at once rather than a single test.
| Provider | Model | Advertised panel | Price |
|---|---|---|---|
| SiPhox Health | At-home, per-panel (selectable) | 59+ 39 biomarkers mapped | $99-124 / panel |
| Empirical Health | One-time panel | 100+ 46 biomarkers mapped | $190 one-time |
| Mito Health | At-cost marketplace + optional membership | 100+ 63 biomarkers mapped | Core Panel ~$198 |
| Superpower | Annual membership | 103+ 73 biomarkers mapped | $199/yr |
| Hundred | Annual membership | 160+ 74 biomarkers mapped | $199/yr |
| Function Health | Annual membership | 160+ 88 biomarkers mapped | $365/yr |
| Blueprint (Bryan Johnson) | Annual membership | 160+ 88 biomarkers mapped | $365/yr |
| Everlywell 360 | Annual membership | 83+ 35 biomarkers mapped | $399/yr |
| Quest Health (Elite) | One-time direct-pay | 85+ 49 biomarkers mapped | $399 one-time |
| InsideTracker | Membership + à-la-carte tests | 48+ 46 biomarkers mapped | $489 (1st test) |
| Marek Health | Annual membership | 80+ 55 biomarkers mapped | ~$495/yr |
| OneTwenty | Annual membership | 85+ 51 biomarkers mapped | $499/yr |
| Thorne Advanced | One-time panel | 60+ 51 biomarkers mapped | ~$830 one-time |
| Rythm Health | At-home subscription | 24+ 22 biomarkers mapped | $79/mo |
| Lifeforce | Subscription + diagnostic | 51+ 49 biomarkers mapped | ~$2,137/yr |
What Vitamin D, 25-OH is
The main circulating storage form of vitamin D and the standard measure of status. It governs calcium and bone metabolism and has broad immune and gene-regulatory roles.
Why it matters for longevity & performance
Low status associates with higher all-cause mortality, infection, and poorer bone and immune outcomes; longevity advocates target a repletion sweet spot rather than mere sufficiency.
Vitamin D, 25-OH testing — frequently asked
Do I need to fast for a Vitamin D, 25-OH test?
No. Vitamin D, 25-OH does not require fasting — you can test any time of day.
Do I need a doctor's order to get a Vitamin D, 25-OH test?
No. Direct-to-consumer labs (GoodLabs, Ulta, Quest and Labcorp OnDemand) include the physician order in the price — you order online and visit a draw site, no appointment with your own doctor needed.
How fast are Vitamin D, 25-OH results?
Usually 1–3 business days after your blood draw; most results post to the lab's online portal.
What's the difference between the standard and optimal Vitamin D, 25-OH range?
Reference intervals describe results in a reference population; they do not by themselves diagnose or exclude disease. A treatment target depends on the condition and the person. These are adequacy/safety categories, not a recommendation to reach 50 ng/mL. A higher value is not automatically better; the appropriate goal depends on the clinical situation.
Does insurance cover Vitamin D, 25-OH testing?
Often, when ordered for a diagnosis; many plans cover it as preventive care at no cost for eligible adults. The direct-pay prices above let you skip insurance and test on your own schedule.
Related Vitamins & Nutrients biomarkers
Educational guidance. Use your reporting lab’s reference interval and discuss personal targets and results with your clinician.