Advanced Vitamin B12 Blood Test

Get detailed insights into your vitamin B12 levels, including active B12 markers, to understand the root causes of low energy, mood changes, and cognitive difficulties.

  • Doctor reviewed
Sample
Blood
Collection
In-store clinic or home nurse visit or venous draw at clinic
Results in
3 days
Biomarkers
18
Doctor reviewed
Yes
Tests for
  • MPV
  • Platelet count
  • Ferritin
  • Haematocrit
  • Haemoglobin
  • MCH
  • MCHC
  • MCV
  • RDW
  • Red cell count
  • Folate - serum
  • Vitamin B12 - active
  • +6 more

Test specifications

Provider
Medichecks
Sample type
blood
Collection method
in-store clinic or home nurse visit or venous draw at clinic
Turnaround time
3 days
Biomarkers tested
18
At-home test
No
Doctor reviewed
Yes
Gender focus
Both

What's tested

18 biomarkers as listed by Medichecks.

Clotting status

  • MPV
  • Platelet count

Iron status

  • Ferritin

Red blood cells

  • Haematocrit
  • Haemoglobin
  • MCH
  • MCHC
  • MCV
  • RDW
  • Red cell count

Vitamins

  • Folate - serum
  • Vitamin B12 - active

White blood cells

  • Basophils
  • Eosinophils
  • Lymphocytes
  • Monocytes
  • Neutrophils
  • White cell count

About this test

Get detailed insights into your vitamin B12 levels, including active B12 markers, to understand the root causes of low energy, mood changes, and cognitive difficulties.

Whether you're managing a known deficiency or looking to investigate symptoms, this advanced test provides the clarity you need to take action and support your overall wellbeing.

Description provided by Medichecks.

Our editorial score

Compare Health Test Score
Editorial confidence: 10.0/10

Score breakdown

  • Clarity and documentation 8.0/10

    The listing publishes a short description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.

  • Clinical depth 10.0/10

    18 biomarkers, placing it in the 93rd percentile of vitamins tests we track.

  • Collection convenience 5.0/10

    Requires a venous draw at a clinic; a home nurse visit is offered; results within 5 days.

  • Results and follow-up 8.5/10

    Results are reviewed by a doctor.

  • Trust signals 9.5/10

    Trustpilot 4.5 from 2,477 reviews; accredited lab (UKAS ISO 15189 partner labs); doctor review as standard; trading 25+ years.

  • Value for money 7.8/10

    £89.00 against a median of £119.00 for the 13 similarly sized vitamins tests we track (-25%).

View all →

Iron, Vitamin D & B12 Deficiency Blood Test

A 3-marker blood test combining ferritin, vitamin B12 and vitamin D, aimed at people at higher risk of these common deficiencies, such as those on plant-based diets or with limited sun exposure.

  • At-home test
8.8 / 10 Three common deficiencies bundled below the market median

Vitamins blood test

A three-marker blood test measuring active vitamin B12, folate and vitamin D, for checking common nutrient deficiencies linked to energy, mood and immune health.

  • At-home test
8.8 / 10 Matches the group median on both depth and price