Vitamin D Blood Test

Vitamin D Blood Test - Official Rapid Tests
Vitamin D Blood Test - Official Rapid Tests

Vitamin D Blood Test

A Vitamin D Blood Test is used to measure the levels of Vitamin D in your blood. If the test indicates a vitamin D deficiency, medication and supplements are available.
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Please read carefully:

All orders placed Mon - Fri before 14:00 will be sent that day for next day delivery via the Royal Mail.

Orders placed after 14:00 will be dispatched the following day, for delivery the day after.

All orders placed on Saturday and Sunday will be sent out on the next working day. Such as Monday, with the kits arriving on Tuesday.

What comes in the box?

Take a look

Test Cassette
Alcohol Pad
Capillary Dropper

How it works?


Order your Vitamin D Test

Fill in your details and order your test kit online with Free standard delivery.

Take the test at home in minutes

Follow the instructions on how to perform the non-invasive swab test.

Receive your result fast - no lab waiting times!

Save the hassle of sending your tests back to a lab.

Information On Our Instant Tests

Important information

Vitamin D is the term used to describe fat-soluble secosteroids that increase the intestinal absorption of calcium, iron, magnesium, phosphate and zinc. These are essential nutrients that keep the bones, teeth and muscles healthy.
The Vitamin D test is an immunoassay based on the principle of competitive binding. During testing, the specimen migrates upward on the membrane chromatographically by capillary action. The membrane is pre-coated with 25 (OH) D antigens on the test line region of the strip - the higher concentration of antigens in the specimen, the lighter would be the T line.

Reading the results

Read results at 10 minutes. Compare the T line intensity with “vitamin D colour card” provided with the kit to get the Vitamin D level in your blood. Do not interpret the result after 20 minutes.
The result will be read according to the colour card provided with the kit. To serve as a procedural control, a coloured line will always appear in the control line region indicating that the proper volume of specimen has been added and membrane wicking has occurred.

How does the home health test process work?

Taking a home health test is straightforward. Select the type of test you would like, if you are unsure of what test you need, you can use our quiz on the home page. Once you have selected the test you would like to proceed with, checkout securely online. We will dispatch the test for delivery the next day if placed before 14:00. The test will be sent to your house via Royal Mail tracked next day delivery. Once you receive your test kit follow the instructions sent to you via email on how to take your test and send the kit back to our accredited lab for analysis. You will then be notified within a few days by email to log in to our online app to view your test results and recommendations.

Where do I send my sample?

You will receive a free return label for sending your health test samples back to our lab for analysis. We will also provide clear instructions via email with return information for your sample.
When will I get my results/how will I receive my results?
Results are usually processed within 2 – 3 working days. If a sample is sent over the weekend (which we do not recommend), you will receive your results within 2 – 3 days from Monday. Once your results and personalised report is ready to view, you will receive a notification via email to log in to the Official Rapid Test online platform.

What do I need to do before my test? i.e. fast, no drinking, etc

If there are requirements for fasting or limited alcohol intake before a blood test, then we will send personalised instructions to you via email once an order has been placed. However, the majority of tests can be taken without fasting.


1. Wash your hands with soap and rinse with water.
2. Open the pouch, remove the test cassette and place it on a clean and level surface. Carefully pull off and dispose of the cap of the lancet.
3. Clean your fingertip with the alcohol pad provided.
4. Press the orange end of the lancet against the fingertip. The tip retracts automatically and safely after use.
5. Keeping the hand pointing downwards, massage the end of your finger to obtain a blood drop.
6. Without squeezing the dropper, place it in contact with the blood. The blood migrates into the dropper up to the line indicated. Avoid air bubbles, you may need to massage your finger again if the blood does not reach the line.
7. Put the collected blood into the sample well of the cassette by squeezing the dropper bulb.
8. Wait for the blood to be totally dispensed in the well. Unscrew the cap of the buffer bottle and add 1 drop of buffer into the sample well of the cassette.
9. Wait for the coloured line to appear. Read results at 10 minutes. Compare the T line intensity with the vitamin D colour card provided to determine the vitamin D level in your blood. Do not interpret the result after 20 minutes.

Vitamin D deficiency risks

There have been many recorded risks associated with low vitamin D. A vitamin D deficiency has been linked to several serious diseases including:
- Osteoporosis
- Osteomalacia
- Multiple sclerosis
- Cardiovascular diseases
- Pregnancy complications
- Diabetes
- Depression
- Strokes
- Autoimmune diseases
- Flu
- Different cancers
- Infectious diseases
- Alzheimer
- Obesity
- Higher mortality

How do I know which test to take?

If you are unsure of what test to take, we recommend you use our free online quiz on our home page. If you already know what test you would, use our search bar to find the product and place an order online.

What if my results show that I’m outside the normal range?

If your results are outside the normal range and are of concern, it is a priority that you contact your local GP or emergency service by calling 111 or 999. Please note: If you feel sick, unwell or are concerned about your health, it is your responsibility to get in touch with the emergency services as soon as possible, do not wait for results to be issued. Disclaimer: If your test range is abnormal, we will not be held responsible for follow-up treatments or notifying a healthcare professional, by taking a test with us, you agree that you will take the necessary steps to follow up with a healthcare provider independently.

Where does my information go, and is the system secure?

Once you register with our platform, your details are automatically encrypted and pseudonymised. Your sample will be sent to our lab and registered using an encrypted HL7 file (Health Level Seven International) is a set of standards, formats and definitions for exchanging and developing electronic health records (EHRs). Your data and sample will be pseudonymised, meaning a set of unidentifiable alphanumeric will be applied to your account, further increasing the security and anonymity of your information. You can also request to delete your data at any time by emailing: