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Vitamin A (Retinol) Blood Test
Vitamin A (Retinol) Blood Test
Vitamin A (Retinol) Blood Test
Vitamin A (Retinol) Blood Test

Vitamin A (Retinol) Blood Test

Vitamin A is an important nutrient for vision, immune function and reproduction. This test determines the amount of vitamin A in your blood.
Blood sample 1 biomarker included 7 working days turnaround

What's included?

Biomarker profile

  • Vitamins

Vitamins (1 Biomarker)

Special instructions

Do not eat for 12 hours prior to your test. Drink plenty of water, if you take medication then you are allowed to take it as you would normally. You should take this test before you take any vitamin or mineral supplements.

There are 2 main forms of vitamin A, active vitamin A and beta-carotene. Active vitamin A or ‘retinol’ comes from animal-derived foods and can be used directly by the body. In contrast, the other form of vitamin A, ‘provitamin A’ is obtained from fruits and vegetables in the form of carotenoids, which the body converts to retinol after food is eaten.


Cheese, eggs, lamb and beef liver, as well as oily fish such as mackerel, salmon and trout, are all great sources of active vitamin A. Coloured fruit and vegetables including spinach, carrots, sweet potatoes and mango are all good sources of beta-carotene. The NHS recommends that for adults, (19-64 years) 0.7 mg of vitamin A should be consumed per day for men and 0.6 mg of vitamin A a day for women.


In the UK having a vitamin A deficiency is rare, but more common in developing countries. However, those who suffer from illnesses that affect the way food is absorbed from the gut including coeliac disease, Crohn's disease and cystic fibrosis are at a greater risk of developing vitamin A deficiency. 


This test measures the level of vitamin A in your blood.

Dr Sam Rodgers MBBS, MRCGP

How it works

  • Take the test

    Collect your sample at home, visit a partner clinic, or we can even send a nurse to you.
  • Post your sample

    Send your sample back on the same day you take it in the freepost pack to our laboratory.
  • Get your results

    View your results with doctor's advice on your personal dashboard.
Laboratories you can trust

Laboratories you can trust

Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our fully accredited partner laboratories.

Expert interpretation <br>
of your results

Expert interpretation
of your results

One of our team of doctors will review your results and give you personalised advice based on your medical history, lifestyle and health and fitness goals.

Your personal<br>
health centre

Your personal
health centre

Discover the easy way to track your health through our online portal, my.medichecks.com. View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help

Questions? Let us help

Our customer care team is on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.

What our customers say

We ask every Medichecks customer about their experience - read what they have to say

Important

Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.