• Vitamin B12 Test (Active) - The National Blood Test Clinic
  • Vitamin B12 Test (Active) - The National Blood Test Clinic
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Vitamin B12 Test (Active)

Vitamin B12 Test (Active)

£37.00 GBP
£37.00 GBP
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Active Vitamin B12 (holotranscobalamin) represents the portion of B12 available for the body’s cells to use. This test provides a more accurate reflection of functional B12 status compared to total B12 levels. Low active B12 may lead to fatigue, neurological symptoms, memory issues, and anaemia.

Why Need a Vitamin B12 Test (Active)?

Testing active B12 gives clearer insight into whether your body has enough usable B12 for essential processes. Early detection helps prevent irreversible nerve damage and supports healthy energy metabolism.

What Gets Assessed?

  • Active Vitamin B12 Levels

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FAQs

What does the Active B12 Test measure?

This test measures the biologically active form of Vitamin B12 (holotranscobalamin), which is the portion available for your cells to use.

Who should consider this test?

It is recommended for individuals with symptoms such as unexplained fatigue, tingling or numbness, memory issues, mood changes, or when a Vitamin B12 deficiency is suspected.

How is this different from a Total B12 Test?

A Total B12 test measures both active and inactive forms, while the Active B12 test specifically shows the usable form, making it a more accurate reflection of your body’s true B12 status.

What are the symptoms of Vitamin B12 deficiency?

Common signs include tiredness, anaemia, mood disturbances, memory problems, numbness, and neurological changes.

Can supplementation improve B12 levels?

Yes. Both oral and injectable B12 supplements are effective in restoring healthy B12 levels when deficiency is detected.