Vitamin B12

What the Vitamin B12 blood test checks
The Vitamin B12 blood test measures the level of vitamin B12 in your blood. B12 is involved in red blood cell production, nerve function, DNA synthesis and normal energy metabolism.
This test may be useful if you are reviewing diet, vegan or vegetarian intake, fatigue, tingling, numbness, memory concerns, anaemia follow-up or supplementation with a healthcare professional.
Biomarker included

Vitamin B12

Sample type and turnaround
This is a blood sample test. Most Leicester clinic results are available within 1 to 2 working days, and UK partner clinic results are typically available within 2 to 4 working days. Some tests can take longer depending on laboratory processing.
How to book with Healthyaa
Book online, choose the Leicester clinic or a UK partner clinic, and receive your report securely by email. There is no separate phlebotomy charge at the Leicester clinic. Partner clinics may charge a separate blood draw fee.
Related tests
You may also want to compare the Haematinics Iron Profile, Vitamin B Profile, or Full Blood Count.
Important information
Vitamin B12 results should be interpreted with symptoms, diet, medication and other blood markers. Seek medical advice for neurological symptoms, severe tiredness, breathlessness, fainting or suspected anaemia.