What labs can I upload to Elabus?

Elabus accepts lab reports from any provider including Quest Diagnostics, LabCorp, hospital labs, international labs, and more. You can upload PDFs, images, or even photos of paper reports.

How many biomarkers do I need to get insights?

Unlike other platforms that require 30+ biomarkers, Elabus provides valuable insights from even a single biomarker. Our AI adapts its analysis based on the data available.

Is Elabus HIPAA compliant?

Elabus is built to HIPAA standards: AES-256 encryption at rest, TLS 1.3 in transit, row-level access controls on every patient record, role-based permissions, and audit logging. Our cloud infrastructure (Supabase, AWS) is SOC 2 Type II certified. We never sell your health data, and we share it only with people you explicitly authorize, such as a provider you invite.

Home › Lab markers › Vitamin D (25-Hydroxy)

NUTRIENTS & INFLAMMATION

Vitamin D (25-Hydroxy) explained — what low and high can mean

Also printed as: 25-OH vitamin D · Vitamin D 25 hydroxy · Calcidiol

Educational only — not medical advice.

What Vitamin D (25-Hydroxy) measures

This test measures 25-hydroxy vitamin D, the storage form your body makes from sunlight and gets from food and supplements. It supports calcium absorption, bone health, and immune function. It is the standard way to gauge vitamin D status.

Why it matters

Vitamin D is one of the most commonly low results on a routine panel, and it moves seasonally in a predictable way. Because it is easy to over- and under-treat, dosing decisions belong with your clinician.

TYPICAL ADULT RANGE

Many labs report 30–100 ng/mL as sufficient for adults, with 20–29 ng/mL often labelled insufficient. Ranges and thresholds vary by lab and by guideline. Reported in ng/mL.

Reference ranges vary by lab, by method, and by age and sex. Always read your own result against the range printed on your report.

Upload your report — every line explained free

Drop in a PDF or a photo of your lab results and get a plain-English breakdown of every marker on it, in the same calm language you just read. No account needed to start.

Explain my lab report →

🔒 Secure & encrypted · Free to try

What a low Vitamin D (25-Hydroxy) can mean

Low vitamin D is extremely common and usually has an obvious explanation: limited sun exposure, winter and higher latitudes, darker skin (which needs more sun exposure to make the same amount), consistent sunscreen use, indoor work, and higher body weight, which distributes it into fat tissue. Some digestive conditions and medications reduce absorption. It is a very ordinary finding, and how much to supplement — if at all — is worth asking your doctor, since the right amount varies a lot between people.

What a high Vitamin D (25-Hydroxy) can mean

A high vitamin D almost always comes from supplementation rather than sun, since the body regulates what it makes from sunlight. High-dose supplements taken over months are the usual reason, and stacking multiple products containing vitamin D without noticing is common. Because very high levels can raise calcium, your doctor may want to check calcium alongside it. Any change to supplement amounts is a conversation for your clinician rather than something to adjust from a lab report.

Questions worth asking your doctor

•Is my level in a range you would want to act on?
•How many products am I taking that contain vitamin D?
•Should calcium be checked alongside this?
•When would you want to recheck it?

Your doctor is the one who can read this number against your history, symptoms, and medications.

Browse all lab markers →

Educational only — not medical advice. Lab results only mean something alongside your history, symptoms, medications, and the rest of your panel. Bring questions to your doctor; they are the one who can interpret your results for you.

All lab markers · Upload a report · About E-Labus · Privacy

Ellie

BY E-LABUS

Hi, I'm Ellie.

Your whole health story — one intelligence.

vms61yl5f · Jul 29, 2026, 12:20 PM UTC