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Vitamin D Test

Vitamin D Test


VitaminD Test is a confidential, laboratory analyzed dried blood spot test that reveals current status and help to customize nutritional needs of vitamin D. It is quick and simple to take and the vitamin D status result is summarized in easy-to-understand graphics.

Taking the test will give you insights on your vitamin D-levels and you will be provided with customized recommendations on how to maintian or improve your levels. It is recommended to take the test every 120 days to monitor your status and adapt your intake and lifestyle according to seasonal variations.


Key Benefits

  • Measures vitamin D status
  • Quick and easy
  • In-depth knowledge
  • Track your progress
  • Anonymous test results from independent laboratory
Shine a light on your health
Zinzino’s VitaminD Test is an easy self-test for analyzing the vitamin D levels in capillary blood obtained from a fingertip using a Dried Blood Spot (DBS) technique. A DBS is scientifically proven to be as accurate as a venous blood sample when vitamin D status is to be analyzed. All it requires is 1 to 2 drops of blood from the fingertip on a Whatman® filter paper and it takes less than a minute to complete. VITAS Analytical Services in Norway will analyze your current vitamin D status and the result is anonymous. The status can vary throughout the year depending on sun exposure, diet where you live, and food supplementation. Therefore the recommended test interval is 120 days. Using your personal test ID you will get in-depth personalized recommendations based on your vitamin D status in order to optimize it.*

How does it work?

1. Take your test
Start by simply pricking your finger and putting 1–2 drops of blood on a filter paper.

2. Activate your test
Register your test by entering your test ID and filling out the form. All data is anonymous.

3. Start your journey
Benefit from a clear starting point for your journey to a normal functioning immune system. Gently adjust and maintain your optimal vitamin D status throughout the year.

4. Wait for the analysis
Vitas Analytical Services has more than 25 years of experience with cutting-edge knowledge and technology, which guarantees that they analyze your sample independently and protect your privacy.

5. Get your results
Your results are accessible and shown in our easy-to-understand graphics within 10-20 days.

6. Re-test your levels
Vitamin D uptake from sun exposure varies in many parts of the world throughout the year, and restoring your status generally takes 3–4 months of consuming vitamin D supplements, depending on the dose and your individual status. We recommend taking a new test every 4 months to track your progress and ensure you reach and maintain your optimal vitamin D status.

What we measure*
There are different methods to assess stores of vitamin D in your body and we use best practice to ensure our accuracy of analysis is superior. A 25-hydroxyvitamin D test is the best way to monitor vitamin D levels as it measures the 25(OH)D, also called calcidiol, in your blood.

The test reflects all three sources of vitamin D; from food, supplements and skin synthesis, and determines if your vitamin D levels are optimal, too high or too low.

The normal range of vitamin D is measured as nanograms per milliliter (ng/mL) or nanomoles per liter (nmol/L). Nmol/L is the most common way of showing the vitamin D status. However, in the US, and a handful of other countries, the same levels are measured using ng/mL. Therefore, when the test results are presented, it is possible to select which measurement unit to be shown.



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