Vitamin B12 Blood Test

The Vitamin B12 Blood Test measures the active form of vitamin B12 (holotranscobalamin) in your blood. This test helps identify vitamin B12 deficiency, which can cause symptoms like fatigue and low energy levels. It is the most accurate way to determine the amount of vitamin B12 available for the body to use.


1 Biomarker Tested:

  • Active B12

Additional biomarkers can be added by personalizing the test.

Why Take the Vitamin B12 Blood Test? 

Vitamin B12 is essential for energy production and overall health. A deficiency can result from various factors such as poor diet, malabsorption due to conditions like pernicious anaemia or gastrointestinal disorders, certain medications, or insufficient production of intrinsic factors needed for B12 absorption in the stomach. Measuring active B12 provides a more accurate assessment of B12 status and potential deficiencies compared to total B12, which includes inactive forms.

How to Check Vitamin B12 Levels at Home?

The Vitamin B12 Blood Test is designed for easy use at home. The kit contains everything needed to collect a small amount of blood and post it back to the lab for analysis. Results are ready within 2 working days of receiving the sample, along with comments and advice from the medical team.

Vitamin B12 Blood Test