You can get this Vitamin D Test plus 16 other biomarkers for just £20 more. Click here to see our Baseline Test

Vitamin D Test

Find out if you are deficient in this vital vitamin with a simple vitamin D blood test carried out using a finger prick kit in your own home.  

Vitamin D is essential for maintaining strong bones, but there is growing evidence that it also plays key roles in boosting your immune system, muscle function, energy levels and reducing inflammation to name but a few.

As the main source of vitamin D is sunlight, it is estimated that up to half of all adults in the UK could be deficient in this essential vitamin.

Our vitamin D deficiency test makes private levels checking fast, affordable and easy.

Test cost:
Test type: finger prick
Estimated turnaround
2 days
From receipt of sample

Why take a vitamin D test?

  • To improve your energy levels
  • To reduce the risk of bone injuries
  • To boost your immune system
  • To answer the question: “Am I vitamin D deficient?”
  • To check you are not over-supplementing

Benefits of Vitamin D Testing

There are several potential symptoms of a vitamin D deficiency, including lethargy and generally lacking in energy.

By taking a simple finger prick blood test to check your vitamin D levels, you can easily identify any deficiency and then, more importantly, take the necessary steps to address it, usually by taking supplements. The impact these changes then make to your numbers can be tracked through your online personal health dashboard.

By eradicating a vitamin D deficiency, you could enjoy benefits including improved energy levels, a reduced risk of bone injuries and an improved immune system.

Key benefits when using Forth testing

Fast & accurate

Fast & accurate analysis from accredited laboratory


Tests can be done at home


Secure access to online results

Online dashboard

Online dashboard which tracks results over time

Included in this test

Vitamins & minerals

Tested biomarkers
  • Vitamin D (25 OH)

How it works

Collect sample

We will send you a finger prick kit to use at home

Post sample

Pop your sample in the post to us using a pre-paid envelope

Online results

View your results on your secure personal health dashboard

Mark , 29

I suffer from a hereditary condition which causes my body to store too much iron.  My biggest issue before using Forth was getting an appointment with my GP.  Now using Forth I can track my iron levels quickly and easily and take action before levels start to affect my health.

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Test cost: £39.00

Estimated turnaround 2 days From receipt of sample

Test type: finger prick

Add to basket