Book Your Vitamin Deficiency Test in London Today

Vitamin Deficiency Test in Marylebone – Check Your Levels Today

By Tharb Faisl

What is a Vitamin Deficiency Test and Why It Matters

Feeling tired all the time? Experiencing hair loss, low mood, or brain fog?

You might be low in essential vitamins – and not even know it.

At Marylebone Diagnostic Centre, we offer fast, accurate vitamin deficiency testing from our private clinic on Baker Street, minutes from Harley Street, Paddington, and Euston.

Our vitamin blood test panels can identify:

  • Vitamin D – linked to fatigue, mood, immunity, bone health
  • Vitamin B12 – supports energy, nerves, and mental clarity
  • Folate (B9) – critical for red blood cells and fertility
  • Iron & Ferritin – often combined with vitamin testing for tiredness
  • Optional: Magnesium, Zinc, Calcium

All tests are carried out under the Marylebone High Standard™ and interpreted by expert clinicians. Results are usually available same day or within 24 hours.

Tired, Foggy, or Not Feeling Like Yourself?

You don’t need to “power through” low energy or guess why you’re feeling off.
Vitamin deficiencies are very common — especially in London, where sunlight is limited and stress is high.

At our Central London clinic, we help:

  • Busy professionals with burnout
  • Young women with hair thinning or fatigue
  • Men feeling low energy or poor libido
  • People with restricted diets or chronic health issues
  • Health-conscious individuals who want to optimise performance

Many of our clients come from Marylebone, Harley Street, Kensington, Fitzrovia, and Mayfair — including athletes, doctors, and executives who trust our discreet, expert-led service.

What’s Included and How to Book

Your test may include:

  • Vitamin D
  • Vitamin B12
  • Folate (B9)
  • Iron & Ferritin
  • Optional: Calcium, Magnesium, Zinc, and full fatigue screen
Marylebone diagnostic centre main

Book your private vitamin deficiency test in Marylebone today.

Prices
From just £189 per vitamin

Results in 48 hours | Walk-in or Book Ahead

73 Baker Street, Marylebone, London
Call: +44 7495 970109
Book online at marylebonediagnosticcentre.com

Same day appointments available. Trusted by doctors, athletes, and busy Londoners.

FAQs – Vitamin Deficiency Testing in London

What symptoms suggest a vitamin deficiency?
Fatigue, low mood, poor sleep, hair loss, brain fog, pale skin, or low immunity.
How long does the test take?
The blood draw takes 5–10 minutes. Results usually within 24 hours.
Do I need to fast before the test?
No fasting is required for basic vitamin testing, unless otherwise advised.
Can I test for multiple vitamins at once?
Yes, we offer packages that check multiple vitamins, minerals, and fatigue markers.
How do I book a test?
You can call, WhatsApp, or book online. Walk-ins are also accepted.
Will I get help interpreting the results?
Yes, a specialist will explain your results clearly and advise on next steps.
Can I get supplements from you if I’m low?
Yes, we offer personalised supplement recommendations based on your profile.
Is it safe and private?
Completely. We maintain full discretion and adhere to medical confidentiality.
I follow a vegan diet – is testing recommended?
Absolutely. B12 and iron are common deficiencies in vegan/vegetarian clients.
Do you test children or teens?
Yes, with consent. We offer vitamin and iron testing for children from age 8+.

Additional Tests

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