️️🔥LIMITED TIME SALE - UP TO 90% OFF selected items. Free Shipping for orders over £60
The Vitamin D Test is a single-marker blood test measuring 25-hydroxyvitamin D (25-OH), the storage form of vitamin D, processed by London Medical Laboratory (LML), a UKAS-accredited ISO 15189 laboratory, and sold by Ways Pharmacy (UK).
Key facts
| Test type | Single-marker vitamin D blood test |
|---|---|
| No. of biomarkers | 1 — vitamin D (25-OH) |
| Sample | Blood — in-store phlebotomy or at-home finger-prick |
| Laboratory | London Medical Laboratory (LML) — UKAS-accredited (ISO 15189) |
| Turnaround | Typically 3–5 working days from when the lab receives your sample |
| Options | In-store at Holborn London, or at-home self-collection kit |
| Location | Holborn London — 77 Southampton Row, WC1B 4ET |
| Sold by | Ways Pharmacy, UK (GPhC-registered) |
Who it is for
- Adults in the UK checking their vitamin D status at the end of winter, when up to a quarter of the population runs low
- People with fatigue, bone or muscle aches, or low mood who want to rule out vitamin D deficiency
- People with limited sun exposure, darker skin, or who cover most of their skin outdoors
- People taking a vitamin D supplement who want to confirm their level is in range
Not suitable for: acutely unwell people who need urgent medical assessment; use as a substitute for diagnostic assessment by a doctor.
What is measured
- Vitamin D (25-OH) — 25-hydroxyvitamin D, the marker used to assess whether your vitamin D stores are deficient, insufficient, or adequate. Vitamin D helps regulate calcium and phosphate, which keep bones, teeth and muscles healthy.
How it works
- Complete payment online and choose your option: an appointment at Holborn London, or an at-home self-collection kit posted to you.
- For in-store, attend Ways Pharmacy, 77 Southampton Row, London WC1B 4ET, where a trained operator takes a blood sample. For at-home, follow the kit instructions to collect a finger-prick sample and return it in the prepaid packaging.
- Your sample is sent to London Medical Laboratory for analysis.
- You receive a written report with your result against the reference range, typically within 3–5 working days of the lab receiving your sample.
- A pharmacist can talk you through the result and, where appropriate, recommend GP follow-up.
Frequently asked questions
Do I need to fast before a vitamin D test?
No. Vitamin D is not affected by food, so you can eat and drink as normal before your sample. Take your regular medications as usual unless your GP has advised otherwise.
How long do results take?
Results are typically returned 3 to 5 working days after London Medical Laboratory receives your sample. You will receive a written report showing your level against the reference range.
Is the laboratory accredited?
Yes. Samples are processed by London Medical Laboratory (LML), a UKAS-accredited laboratory operating to ISO 15189, the international standard for medical testing laboratories.
What if my vitamin D is low?
A low result does not diagnose a condition on its own. The pharmacist will explain what your level means, discuss whether supplementation may be appropriate, and recommend GP follow-up if needed. Reference ranges are provided with your report.
Can I do this test at home?
Yes. You can either attend our Holborn pharmacy for a phlebotomy sample or order an at-home finger-prick self-collection kit and post it back to the laboratory in the prepaid packaging.
When to seek further advice
This test does not diagnose a condition. Reference ranges are provided with your report; discuss your results with a clinician, and if a result is abnormal, follow it up with your GP. Seek prompt medical advice if you feel acutely unwell.
This is a private health screening service. Results are interpretive and do not replace clinical diagnosis by a GP or specialist. Abnormal results should be followed up with your GP.
Customers also bought
