Vitamin B12 Blood Test
Measures vitamin B12, a nutrient relevant to nerve function and red blood cell formation. Often requested by those following plant-based diets.

What this tells you
Measures vitamin B12, which the body uses in the making of red blood cells and in nerve function. Often requested by those eating little or no animal produce, or where tiredness has no obvious cause.
Results are returned and explained privately by the clinic. Nothing is published on this website.
How to prepare
No fasting needed. If you take a B12 supplement or have had a B12 injection, tell us when you book — recent supplementation raises the reading and timing may need to be adjusted.
If anything here is unclear, or you are unsure whether it applies to you, call +44 7830 704502 before your appointment and we will talk it through.
Common questions
Do I need to fast before the vitamin B12 Blood Test?
No fasting needed. If you take a B12 supplement or have had a B12 injection, tell us when you book — recent supplementation raises the reading and timing may need to be adjusted.
What does the vitamin B12 Blood Test measure?
Measures vitamin B12, which the body uses in the making of red blood cells and in nerve function. Often requested by those eating little or no animal produce, or where tiredness has no obvious cause.
How long does the appointment take?
The appointment is booked as 20 minutes. A small blood sample is taken at the studio, usually from the arm, and sent to an accredited laboratory.
How do I receive my results?
Results are returned to the clinic and shared with you privately, with time to talk them through. Nothing is published or stored on this website.
Do I need a GP referral?
No. You can book any blood panel directly, without a referral from your GP.