• Vitamin D Test (25 - OH) - The National Blood Test Clinic
  • Vitamin D Test (25 - OH) - The National Blood Test Clinic
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Vitamin D Test (25-OH)

Vitamin D Test (25-OH)

£59.00 GBP
£59.00 GBP
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VITD

Low vitamin D can cause fatigue, weakened bones, muscle pain, and frequent illness. The Vitamin D Test (25-OH) measures your body’s vitamin D reserves, helping detect deficiency or insufficiency that may affect bone strength, immune balance, and overall vitality. Venous blood testing ensures accurate results for early detection and effective management.

Why the Vitamin D Test (25-OH) Matters?

Vitamin D plays a key role in calcium absorption, bone density, immune support, and mood regulation. Modern lifestyles, limited sun exposure, and poor diet often contribute to deficiency. Testing helps identify low levels early, allowing timely intervention with diet, supplements, or lifestyle changes.

What Gets Assessed?

  • Vitamin D (25-OH) levels in the bloodstream

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FAQs

What does this test measure?

It measures the total 25-hydroxyvitamin D in the blood, which is the most reliable marker of your body’s vitamin D status.

Who should take this test?

Anyone experiencing fatigue, bone or muscle pain, frequent infections, low mood, or those with little sun exposure may benefit from this test.

How is the test done?

A small blood sample is collected from a vein and analysed in a UKAS-accredited laboratory for accurate results.

What causes vitamin D deficiency?

Deficiency often results from limited sunlight, poor diet, darker skin tone, obesity, or underlying health conditions affecting absorption.

Can the deficiency be corrected quickly?

Yes, with vitamin D supplements, dietary changes, and sensible sun exposure, levels typically improve within a few weeks to months.