Vitamin D Test

We work with Zinzino, a Scandinavian health and wellness company specialising in test-based, personalised nutrition.

Shine a light on your vitamin D status 

Monitor your levels of the sunshine nutrient throughout the year and learn more about your vitamin D. The test includes intuitive, easy-to-follow instructions and result-based guidance on how to top up with an appropriate amount of Vitamin D based on your results. 

• Measures vitamin D status

• Quick and easy

• Clear result information

• Follow your vitamin D status over time

• Anonymous test ID and results from an independent laboratory

Shine a light on your vitamin D status
Zinzino’s Vitamin D 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 method can be used to analyze vitamin D status and has been shown to correlate with venous blood sampling when validated for this purpose.

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 linked to your unique test ID. 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 unique test ID, you will get result-based guidance based on your vitamin D status to help you understand your result.

What we measure
There are different methods to assess vitamin D status in your body, and we use a validated method to ensure reliable analysis. A 25-hydroxyvitamin D test is a widely used way to monitor vitamin D levels as it measures 25(OH)D, also called calcidiol, in your blood. The test reflects all three sources of vitamin D: food, supplements and skin synthesis.

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 is shown.

How does it work?

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

Step 2. Activate your test
Register your test by entering your test ID and filling out the form. All data is linked to your unique test ID.

Step 3. Start your journey
Benefit from a clear starting point for your journey to understanding your vitamin D status. Gently adjust and maintain your vitamin D status throughout the year.

Step 4. Wait for the analysis
Vitas Analytical Services has more than 25 years of experience with specialized knowledge and technology, which supports independent analysis of your sample and secure handling of your data.

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

Step 6. Re-test your levels
Vitamin D uptake from sun exposure varies in many parts of the world throughout the year, and supporting 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 follow your vitamin D status over time. (A special discount will be given to you for retests).

CE-marked Test Kit
The Zinzino Dried Blood Spot Test is CE-marked in accordance with Regulation (EU) 2017/746 on in vitro diagnostic medical devices. This means the test and all its components are in compliance with applicable laws and regulations, and so the Kit has the CE mark on it.

After purchasing the test, we will contact you to double-check whether you want to come to our clinic for the test, or if you want the testing kit delivered to you to do it yourself (it comes with clear and simple instructions).