All markers › Nutrients
Vitamin D (25-OH)
A hormone-like vitamin for bone, immunity and muscle. Many people run low, especially in winter.
Dr. Sorrell's optimal range70–90 ng/mLFrom the Sorrell MD Lab Decoder. Optimal ranges are stricter than the "normal" range printed on a lab report.
Who includes it, and what it costs
| Provider | Included / price | Checked |
|---|---|---|
| Function Health | ✓ included | 2026-10-16 |
| Superpower | ✓ included | 2026-10-16 |
| Jinfiniti AgingSOS Cellular Essentials | ✓ included | 2026-10-16 |
| Quest (questhealth.com) | $75 Vitamin D Test | 2026-10-16 |
| Labcorp OnDemand | $99 Vitamin D Test | 2026-10-16 |
| Walk-In Lab | $59 Vitamin D 25-Hydroxy Blood Test | 2026-10-16 |
| Ulta Lab Tests | $46.95 Vitamin D 25-Hydroxy Total Test | 2026-10-16 |
| Mito Health | $13.61 non-member price; member $9.72 | 2026-10-16 |
| Rythm Health | ✓ included | 2026-10-16 |
| SiPhox Health | — | — |
| Everlywell | $99 Vitamin D & Inflammation Test | 2026-10-16 |
| LetsGetChecked | — | — |
Memberships (Function, Superpower) and Jinfiniti's panel cover many markers for one price. See the home page. Quest and Walk-In Lab add a physician fee of about $6 per order.