Vitamin B12 Test

This at home test measures your vitamin B12 levels. This essential water-soluble vitamin is necessary for the normal formation of your red blood cells, nerve health and function, as well as DNA synthesis.

Collection method:

Finger-prick sample

Number of items tested: 1


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More about this test

Vitamin B12, also known as cobalamin, is an essential vitamin and must therefore be taken in through the diet. It is found predominantly in meat, fish, eggs and dairy products; therefore vegetarians and vegans are at greater risk of low B12 levels, though it can be found in very small quantity in certain algae.


Vitamin B12 is bound to the protein in food and is released during digestion by the stomach acid. When released from the protein a substance called intrinsic factor combines with it to enable absorption into the bloodstream. An autoimmune condition called pernicious anaemia prevents absorption by preventing the production of intrinsic factor; this is a leading cause of vitamin B12 deficiency. Other conditions affecting the stomach or small intestine such as coeliac disease, Crohn’s disease and ulcerative colitis can also lead to inadequate B12 absorption.

• Blood collection device using finger-prick method
• Tracked 24 return mailing bag
• A doctor validated report
• 2 working days turnaround from sample receipt at lab

Order by 3pm weekdays and your test will be the dispatched the same day (excluding bank holidays). Royal Mail tracked 24 shipping is provided free of charge. You will be emailed your tracking number.

Your results will show the level of vitamin B12 in your blood and whether this level is deficient, insufficient, normal or elevated.

Vitamin B12

How it works

Choose your test

Take control of your health from our range of home-to-lab tests and we’ll send the kit straight to your door.

Post your sample

Simply collect your sample at home and return it to our network of fully accredited labs for expert analysis.

Get your results

Your results will be delivered via our secure online health hub within days.

Your results

Once your sample has been analysed by our laboratory experts, your results will be collated into a clear, easy to understand report.

We always recommend sharing your report with your doctor or healthcare provider as supplementary information to your overall healthcare. Our tests are not intended as a substitution for professional medical advice and you should speak to your doctor if you are seriously worried in any way about your symptoms.

view sample report

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