Vitamin D test · At-home finger-prick blood · UK clinic
Complete Vitamin D Test (D2 + D3)
The Complete Vitamin D Test is an at-home finger-prick blood test from a UK clinic that measures your vitamin D2 and D3 separately and your total vitamin D, the standard measure of your status from sunlight, food and supplements. For tiredness, low mood, aches, frequent infections or bone concerns, and for checking that a supplement is actually working.
- Free UK delivery and prepaid return by DHL
- Results in 15 working days
Not sure if this is the right test for you? Book a free 15-minute Discovery Call with a registered practitioner.
What you receive
Your at-home finger-prick kit, laboratory analysis of your dried blood sample for vitamin D2, vitamin D3 and total vitamin D, plus a lab report that shows where your level sits against the deficient, suboptimal and optimal ranges. View a sample lab report.
Delivery and turnaround
Free UK delivery and prepaid return, both by DHL courier. Kits are dispatched within 1 to 2 working days and delivered the next working day. Results ready approximately 15 working days from when the lab receives your sample. International delivery is available, with costs calculated at checkout.
What does the Vitamin D test measure?
It measures 25-hydroxyvitamin D, the storage form that reflects your true status, and reports D3 (from sunlight, animal foods and most supplements) and D2 (from plant foods and some prescriptions) separately as well as the total, so you can see both your level and where it is coming from.
Is your supplement working?
Seeing D2 and D3 separately shows whether what you take is reaching your blood at a useful level.
Total vitamin D
Your overall 25-hydroxyvitamin D, read against the deficient, suboptimal and optimal ranges.
Vitamin D2
Ergocalciferol, from mushrooms and fortified plant foods, and the form in some prescription vitamin D.
Vitamin D3
Cholecalciferol, made in your skin from sunlight and found in animal foods and most supplements.
Who is the Vitamin D test for?
For tiredness, low mood in winter, aches, frequent infections or bone concerns, and for anyone who spends most of the day indoors, covers their skin, has darker skin, or is over 65.
Aches, bone or muscle pain
Often linked to: vitamin D deficiency affecting bone and muscle.
This test measures: total vitamin D, with the deficient range flagged.
Autoimmune conditions
Often linked to: low vitamin D, which is common in autoimmune disease.
This test measures: your vitamin D level against the optimal range.
Darker skin
Often linked to: skin making less vitamin D from the same sunlight.
This test measures: your actual level rather than an assumption.
Frequent colds & infections
Often linked to: low vitamin D, which the immune system depends on.
This test measures: your vitamin D status.
Gut conditions that affect absorption
Often linked to: poor absorption of fat-soluble vitamins.
This test measures: whether vitamin D is reaching your blood at all.
Low mood in winter
Often linked to: the seasonal fall in vitamin D.
This test measures: your vitamin D level at the time of testing.
Mostly indoors or always covered up
Often linked to: too little sunlight on skin to make vitamin D.
This test measures: whether your diet and supplements are making up the gap.
Osteopenia or osteoporosis
Often linked to: low vitamin D limiting calcium absorption.
This test measures: your vitamin D status, one of the few bone factors you can change quickly.
Over 65
Often linked to: skin making less vitamin D with age.
This test measures: total vitamin D against the optimal range.
Pregnant or breastfeeding
Often linked to: higher demand for vitamin D.
This test measures: your level, so a supplement dose can be set.
Taking a vitamin D supplement
Often linked to: a dose that is too low, too high or not being absorbed.
This test measures: D3 and D2 separately, so you can see whether the supplement is working.
Tiredness & low energy
Often linked to: low vitamin D, which is common in the UK between October and March.
This test measures: your total 25-hydroxyvitamin D against the optimal range.
How does the at-home vitamin D test work?
A few drops of blood from a finger prick onto the collection card, dried at home, then collected by DHL from your door.
Order online
Secure checkout. No clinic visit or GP referral required.
Your kit arrives by courier
Dispatched within 1 to 2 working days. Delivered next day by DHL.
Finger-prick at home
A few drops of blood on the collection card, following the instructions in the kit. Let it dry before packing.
Return by prepaid courier
Book a free DHL collection online. Results ready in 15 working days.
How do I interpret my results?
Making sense of a lab report is the most important part of testing. Once your results are ready, your lab report is uploaded to your secure Client Folder. From there, you choose your level of support from our UK-registered nutritional therapist (optional, priced separately): a Lab Findings Review or a Comprehensive Consultation.
BSc, mBANT, CNHC, NLP Dip
Which consultation is right for me?
Understand your results with a Lab Findings Review, or go a step further and act on them with a Comprehensive Consultation.
Lab Findings Review
£99- Clinical analysis of your lab results
- What the findings mean for your symptoms and health
- Time for your questions
Comprehensive Consultation
£180- Everything in the Lab Findings Review
- In-depth review of your health history, diet and lifestyle (Health Questionnaire and Food & Symptoms Diary)
- A fully personalised nutrition & lifestyle action plan
What do our customers say?
“I was recommended this test by Carmen after explaining my symptoms of fatigue, low energy and overall problems with sleep during our first call. Since taking the test and going over the results together, I've been following her personalised plan to improve the balance of my hormones, using a combination of food, supplements and lifestyle adjustments. Three months in, and I have seen a noticeable improvement in my sleep and my energy levels already.”
KathyVerified customerReview of the DUTCH Plus Complete Test + Cortisol Awakening Response (CAR)Easy at home, with a clear explanation after
The test is really easy to do from home and the results come back within weeks, followed by a clear explanation of the results from Carmen and the next steps required.
AdamVerified customerReview of the Histamine Intolerance TestOnce the results came back, I had a detailed consultation with Carmen where she expertly explained every single result and metric in detail and explained what it meant/how it linked with regards to my severe excema symptoms.
IshVerified customerReview of the NutrEval TestBe the first to review this testWrite a review
Be the first to review “Complete Vitamin D Test (D2 + D3)”
Frequently Asked Questions
Can I do the Vitamin D test at home in the UK?
Yes. It is an at-home test: you order online, the kit comes to your door by DHL, you collect at home and the prepaid DHL return takes it to the lab. No GP referral or clinic visit is needed. We send kits to any UK address, and international delivery is priced at checkout.
Is a vitamin D test worth it, or should I just take a supplement?
Taking a supplement without testing means guessing the dose. Too little and a deficiency stays; too much over months is not harmless either. One test tells you where you start, so the dose can be set properly, and a repeat after three months shows whether it has worked. It is also the only way to tell a vitamin D problem from the many other causes of tiredness.
How accurate is the Vitamin D test?
The test measures 25-hydroxyvitamin D in a dried blood spot, the form that reflects your stores over the previous weeks and the measure used clinically to define deficiency, and reports D2 and D3 separately as well as the total. Finger-prick dried blood spot testing for vitamin D is well established. Like any lab test, the result is a snapshot of recent weeks, and it moves with the seasons, which is why the date matters when a practitioner reads it.
Can I get the Vitamin D test on the NHS?
Sometimes. A GP can test vitamin D when there is a clinical reason, such as bone pain or a condition that affects absorption, but routine checks and supplement monitoring are usually not offered. This is a private test, done at home and ordered through a clinic. The price covers the kit, the lab analysis and your lab report; having the result interpreted is a separate, optional consultation.
When should I collect my sample?
Any morning. If you take a vitamin D supplement, keep taking it as normal unless your practitioner says otherwise, so the result shows your real status; if you are checking whether a supplement is working, test about three months after starting it. Warm hands, prick the side of a fingertip with the lancet in the kit, fill the spots on the collection card, let it dry fully, then book the DHL collection. Full instructions are in the kit.
Can someone help me interpret my results, even if I tested elsewhere?
Yes. Book a Lab Findings Review with us and a registered nutritional therapist will take you through every marker against your symptoms and history, whether you tested with us or elsewhere; bring your report to the session. If you then want a personalised plan, that is the Comprehensive Consultation.
Reviews
There are no reviews yet.