• Vitamin B12 Levels  - The National Blood Test Clinic
  • Vitamin B12 Levels  - The National Blood Test Clinic
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Vitamin B12 Levels 

Vitamin B12 Levels 

£35.00 GBP
£35.00 GBP
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The Vitamin B12 Blood Test helps detect whether you're getting enough of this essential nutrient that plays a crucial role in energy production, brain health, red blood cell formation, and nerve function. Ideal for those experiencing fatigue, brain fog, or following a vegan/vegetarian diet.

What Gets Tested

This test measures the total amount of Vitamin B12 in your blood.

Markers included:

  • Vitamin B12 (Total)
View full details
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What This Vitamin B12 Test Measures

Vitamin B12 (cobalamin)
  • Energy metabolism
  • Formation of red blood cells
  • DNA synthesis
  • Nerve health and brain function
  • Mood and mental clarity
Low levels of B12 can lead to
  • Fatigue and weakness
  • Pins and needles or numbness
  • Poor memory or concentration (brain fog)
  • Mood changes, depression, or anxiety
  • Pale skin or anaemia
  • Digestive problems

Who Should Take This Test

How Our Vitamin B12 Blood Test Works

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  • Collect your blood sample using our easy finger-prick kit.

  • Return your sample to our accredited lab in the prepaid envelope.

  • View your results securely online within 2–3 working days.

  • Get personalised insights with optional doctor-reviewed comments.

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How To Use The Home Test Kit

Frequently Asked Questions (FAQs)

What is Vitamin B12 and why is it important?

Vitamin B12 is a water-soluble vitamin that keeps your body’s blood and nerve
cells healthy and helps make DNA. It’s also key in preventing a type of anaemia
that causes tiredness and weakness

What is a healthy B12 level?

Normal range: 190–950 pg/mL (or 140–700 pmol/L, depending on the lab). Levels under 200 pg/mL (150 pmol/L) may indicate deficiency.

Can I improve my B12 naturally?

Yes. B12 is found in:

  • Meat, fish, poultry
  • Eggs and dairy
  • Fortified cereals and plant-based milks
    Supplements and B12 injections are also effective.

Is this test suitable for vegans?

Absolutely. It's especially recommended for plant-based diets where B12 intake
is often low.

Is B12 deficiency serious?

Yes — long-term deficiency can cause permanent nerve damage, memory issues, and severe fatigue. It’s best to monitor ancorrect early.