Vitamin D Test Kit
Request home vitamin D testing online
Prices from £39.99
Vitamin D is important for good health. But it’s quite common to have low vitamin D levels, especially in the winter months.
You can check your vitamin D levels with our convenient at home test kit. Simply carry out the test at home, then post your sample to our partner lab. You should get your results within a few days of the lab receiving your sample.
1 test kit(s) - £39.99
About vitamin D test kit
How to order a vitamin D test online in the UK
You can request a vitamin D test through ZAVA’s online doctor service. Follow these steps:
- Complete a short online questionnaire about your health and lifestyle in a few minutes
- Select your vitamin D test kit and complete your request
- Your test kit will be sent to your preferred address by post, or you can choose to collect it from a Post Office
How to use the test kit
Your vitamin D test includes three lancets and a collection tube. To use your test kit, follow these instructions:
- Wash your hands with warm, soapy water. You might find it more difficult to do the test if your hands are cold
- Dry your hands thoroughly
- Use one of the swabs included in the kit to clean the fingertip that you would like to use. We recommend that you use the middle or ring finger of your non-dominant hand (not the one you write with). Wait until the finger feels dry
- Twist and remove the purple sticks from one lancet, place it in the middle of your fingertip, and press the purple button at the end
- A small drop of blood should start to form on your fingertip. Don’t worry if this doesn’t work the first time as there are three lancets included with your kit
- Use a clean tissue to wipe the first drop of blood away, then angle your finger downwards and massage the sides of your fingertip to form another drop of blood
- Use your other hand to squeeze the fingertip to drop the blood sample into the collection tube. You should fill the tube to the upper line. If you can’t get enough blood to fill the tube, use the additional lancets on another finger and repeat steps three to seven
- Use the plaster included in the kit to cover your fingertip
- Put the lid on to the collection tube and turn it upside down and back several times
- Place your details on the sticky label. This is an important step as our partner lab won’t be able to do your test otherwise. Place the labelled collection tube into the protective wallet, and the wallet into the prepaid envelope
How the results work
Your test kit will be sent to one of our partner labs. They’ll analyse and process your sample one to two days after your test kit reaches them, so you should get your results back quickly.
Your results will say one of three things: you have a normal level of vitamin D, you have an insufficient level of vitamin D, or you are deficient in vitamin D.
The vitamin D test kit measures the amount of vitamin D found in your blood. It can tell you one of three things:
- You have a normal level of vitamin D
- You have an insufficient level of vitamin D
- You are deficient in vitamin D
If you are deficient in vitamin D, you may have weak bones. You might get these symptoms:
- bone pain or tenderness
- muscle weakness
- a higher risk of fractures
- difficulty in walking
If you are insufficient in vitamin D, you have a low level of vitamin D in your body but you might not experience the symptoms of vitamin D deficiency. It’s still important to treat low vitamin D even if you feel well because having low vitamin D puts you at a higher risk of:
- heart disease
- type 2 diabetes
- some types of cancers
- certain conditions such as multiple sclerosis, allergy, and asthma
If you have low vitamin D levels, you might notice that:
- you get ill more frequently
- wounds on your skin take longer to heal
- you have low mood
People who live in the UK are at risk of having low vitamin D in the winter months. You might be at an even higher risk if you:
- have dark skin
- regularly use sunscreen or wear clothing that conceals your skin
- are elderly
- have a BMI that falls in the obese category
- have kidney or liver disease
- take anti-epilepsy medications
Home testing might be the right option for you if you’d prefer not to make a face-to-face appointment with your usual doctor.
Usually if you are taking vitamin D as advised by a doctor you don’t need to take a test to check you levels, because you should be getting enough vitamin D from your supplements.
If you still want to check your blood levels to see if you are getting enough vitamin D you can take the test.
This result means that you have a low level of vitamin D in your body, but at this level most people don’t have any symptoms. It’s important to treat low vitamin D as it can lead to other health problems. You would only need to take a regular low dose of vitamin D if your test results show that you are insufficient. We call this a Vitamin D Continuation Treatment.
If you are vitamin D insufficient, you can request vitamin D continuation treatment through ZAVA. Remember, you can request vitamin D supplements through our service whether you use our home test kit or go to the GP for a blood test.
This result means that you have a very low level of vitamin D in your body. We would recommend that you take a high dose of vitamin D to boost your levels quickly, you should then continue to take a low dose supplement long term. We call this a Vitamin D Starter Treatment.
If you are vitamin D deficient, you can request vitamin D starter treatment through ZAVA. Remember, you can request vitamin D supplements through our service whether you use our home test kit or go to the GP for a blood test.
Dr Clair Grainger
Dr Clair Grainger studied at The University of Edinburgh from 2004 to 2009. She's worked in hospitals throughout Edinburgh and London before completing her GP training in North Middlesex Hospital in 2017.Meet our doctors
Last reviewed: 31 Oct 2019
Lips, P., van Schoor, N.M. and Bravenboer, N. (2013). Vitamin D-related disorders. Primer on the Metabolic Bone Diseases and Disorders of Mineral Metabolism, 8th ed. Hoboken: John Wiley & Sons Inc. [online] Available at: https://onlinelibrary.wiley.com/doi/abs/10.1002/9781118453926.ch75 [accessed 13th May 2021]
Bhan, A., Rao, A.D. and Rao D. S. (2010). Osteomalacia as a result of vitamin D deficiency. Endocrinology and Metabolism Clinics North America; 39: 321. [online] Available at: https://pubmed.ncbi.nlm.nih.gov/22525844/. [accessed 13th May 2021]
Pearce, S. H. S. and Cheetham, T. D. (2010). Diagnosis and management of vitamin D deficiency. British Medical Journal. [online] Available from: https://www.bmj.com/content/340/bmj.b5664. [accessed 12th February 2019].
Thacher, T. D. and Clarke, B. L. (2011). Vitamin D insufficiency. Mayo Clinic Proceedings; 86(1): 50-60. [online] Available at: https://pubmed.ncbi.nlm.nih.gov/21193656/ [accessed 13th May 2021]