Also known as: 25-hydroxyvitamin D, vitamin D level.
What the Vitamin D (25-OH) test measures
The level of 25-hydroxyvitamin D in the blood.
Typical reference range
Sufficient roughly 30–50 ng/mL; deficiency below 20 ng/mL. Reference ranges differ between laboratories and depend on age, sex, and other factors, so always compare your result with the range printed on your own report. This page is for orientation only and is not medical advice.
Why a Vitamin D (25-OH) is ordered
- Investigating fatigue or bone symptoms
- Monitoring supplementation
What to track
- Result and date
- Supplement dose
- Seasonal trend
How Hamdosh helps with Vitamin D (25-OH) results
Lab values only tell a story when you can see them over time. Upload each Vitamin D (25-OH) report to Hamdosh and it's read with per-field confidence OCR, attached to the right family member, and plotted on one timeline — alongside the medications and visits that surround it. Everything is encrypted at rest, and search is one tap away: "show my Vitamin D (25-OH) history."