Vitamin B12 Test

Monitoring your vitamin B12 levels can help to rule out underlying health conditions or explain symptoms such as exhaustion, brain fog or digestive issues.

Our simple at home test allows you to quickly and easily access insight into your total Vitamin B12 level.

  • Free shipping
  • A doctor validated report
  • Fast results from sample receipt at lab
  • 7-days per week customer care

Collection method:

Finger-prick sample

Number of items tested: 1


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

Food Allergy & Intolerance Tests

How long does it take to get my results?

There is a 5 working day turnaround from sample receipt at the lab, you will be notified when your results are ready in your dashboard.

When will I receive my order?

If you order by 3pm weekdays, your test will be dispatched the same day (excluding bank holidays). DPD next weekday shipping is provided free of charge.

How do I know my results are valid?

We only partner with ISO and UKAS accredited laboratories that adhere to the highest standards of quality assurance.

My result says not enough sample to test?

If all four blood spots on the card supplied are not filled fully, the sample will not be able to be tested at the lab. Please read your supplied instructions and follow the video guide to ensure that you fill your sample accurately.