mail: info@londonbloodtests.uk phone: 0203 488 0809

Vitamin D Testing London

Vitamin D tests are used to determine whether you have Vitamin D deficiency or Vitamin D excess. Results within 24 hours. 

*Please note that an additional £30 phlebotomy charge will be added to your bill. Most competitive prices on the market!

Please note payments are only done online or via electronic invoice. No payments can be made in the clinic/pharmacy.


  • Early Detection.
  • Immune System Support.
  • Inflammation Control.

What is Vitamin D?


Vitamin D is an essential, fat-soluble nutrient crucial for various important bodily functions. It is naturally synthesised through skin contact with sunlight, and can also be gained from dietary options like oily fish and fortified foods. Primarily, it’s indispensable for the uptake of calcium, ensuring healthy bones and teeth. Beyond that, Vitamin D significantly contributes to immune response, muscle maintenance, and cellular development.

A deficiency in Vitamin D poses severe health risks. In young children, a lack of this nutrient can bring about rickets, leading to feeble and deformed bones. For adults, inadequate levels can result in ailments like osteomalacia, which weakens bones, or worsen existing osteoporosis, elevating the likelihood of fractures.

To maintain proper Vitamin D status, natural sun exposure is generally sufficient; however, food sources and supplements serve as good alternatives. Given that various factors like your geographical setting and the season can affect your body’s Vitamin D production, it’s advised to undergo periodic testing. This becomes even more critical for individuals with restricted access to sunlight or those with existing medical issues.


What is Vitamin D Testing?


Checking your Vitamin D levels through a blood test is like getting a full health report card. Why? Because Vitamin D is a bit of a superstar. It keeps your bones strong, helps your muscles work well, and boosts your immune system. Low levels could be a warning sign, telling you it’s time for a health tune-up.

So where can you get Vitamin D? First up, the sun. Spending time outdoors lets your skin make its own Vitamin D. You can also get it from certain foods like oily fish and egg yolks. If you’re falling short, there’s always the option of supplements.

Your liver and kidneys join the party by converting Vitamin D into a form your body can use, known as 25(OH)D. This is the version most tests measure, and it plays a big role in keeping your body running smoothly, from absorbing calcium to keeping cells in tip-top shape.

Now, let’s talk about blood tests for Vitamin D. Why choose a vitamin D test NHS provides, go private instead! For starters, private testing often provides faster results. Plus, it allows for more frequent testing, which is crucial for monitoring any changes. With vitamin D blood test NHS options, you might face longer wait times and restrictions on how often you can get tested, now you can book whenever you want Vitamin D testing from London Blood Tests, only for £48. Book Now. So, for those who like to stay proactive about their health, private testing offers a clear advantage.


Why Do I Need a Blood Test for Vitamin D?

Why consider a blood test for Vitamin D? Here’s the core of it: It’s not about numbers; it’s about listening to your body’s subtle cues—like persistent fatigue, frequent illness, or muscle and bone aches. These could be warning signs of low Vitamin D levels, and you shouldn’t brush them off.

Vitamin D isn’t just for bones; it’s an essential player in your immune system, mental health, and muscle function. Its absence can lead to a myriad of health issues, from brittle bones to weakened immunity. A Vitamin D test provides a comprehensive health overview.

Today, our indoor lifestyle has decreased natural sun exposure, the primary source of Vitamin D. Factors like age, skin colour, and geographic location further influence Vitamin D levels.

A Vitamin D blood test is more than a yearly ritual. It’s a precise tool that flags early health risks. In a world where health is complex, this test simplifies it into actionable insights. It’s a clinical yet intimate step that allows you to be proactive about your well-being. When contemplating the test, consider it less as optional and more as imperative.

Symptoms of Low Vitamin D Levels:

  • Bone Pain
  • Muscle Weakness
  • Chronic Fatigue
  • Depression
  • Frequent Illness
  • Hair Loss
  • Slow Wound Healing

Symptoms of High Vitamin D Levels:

  • Nausea
  • Vomiting
  • Confusion
  • Frequent Urination
  • Weakness


Benefits of Vitamin D Blood Test

A Vitamin D blood test offers a lot of insight into your general state of health. Most people that come into our clinic have mental health concerns and also loads of symptoms that raise some flags on their well-being. Here is a list benefits of why should you consider a blood test from London Blood Tests:


  • Early Detection:

A Vitamin D test quickly identifies deficiencies, helping you avert severe conditions like osteoporosis or chronic respiratory issues.

  • Personalised Care:

Knowing your Vitamin D levels enables tailored wellness plans, moving beyond one-size-fits-all solutions.

  • Ongoing Monitoring:

Regular tests offer critical data for those with existing health conditions, enabling more effective treatment.

  • Empowerment:

Understanding your blood test for Vitamin D results shifts you from a passive to an active role in your healthcare journey.

  • Resource Efficiency:

The test guides your health investments, be it in supplements or lifestyle changes, ensuring maximum impact.

  • Mental Health Insights:

Vitamin D is linked to mood and cognitive function. Knowing your levels can help guide mental health strategies, potentially mitigating issues like depression or cognitive decline.

  • Immune System Support:

Testing allows you to optimise Vitamin D levels that are crucial for immune function, especially beneficial during flu season or pandemics.

  • Inflammation Control:

Elevated Vitamin D blood test results have been linked to reduced inflammation, a key factor in many chronic diseases. Testing provides a route to manage or even prevent inflammatory conditions.

  • Better Absorption:

Balanced Vitamin D levels improve calcium absorption, enhancing not just bone health but also muscle function and cardiovascular health.

  • Preventive Measure:

For at-risk populations, such as the elderly or those with restricted sun exposure, testing serves as a preventive strategy against diseases related to Vitamin D deficiency.


Vitamin D Testing @ London Blood Tests


Coming to London Blood Tests for your Vitamin D blood test is as easy as ever. We provide you a general step-by-step list of how the procedure is done at our clinic:


  1. Make an Appointment

Call us or use our online system to book your test. We have 7 locations in London to choose from.

  1. Get Ready

Some tests need you to fast or stop certain medicines. Our team will tell you what you need to do before you come in.

  1. Check-In

Arrive at the clinic with your ID and any papers you might need. Our friendly staff will help you get checked in quickly.

  1. Wait Your Turn

You won’t have to wait long. Our waiting area is comfy. Listen out for your name.

  1. Meet the Blood Test Pro

A skilled person called a phlebotomist will take you to a private area. You can ask any questions you might have.

  1. Time for the Test

The phlebotomist will tie a band around your arm, find a vein, clean the area, and take the blood sample. It’s fast and usually painless.

  1. After the Test

You’ll get a small bandage where the needle went in. Keep your arm up for a little while to help it heal.

  1. Lab Work

Your blood goes to our high-tech lab. Experts will test it to find out your Vitamin D level.

  1. Get Your Results

In a few days, you’ll get your results by email or through a secure online portal.

  1. What’s Next?

Depending on your results, you might need further advice or treatment. We’ll guide you through what steps you should take next.


Vitamin D Home Test

Our clinic offers a phlebotomy blood draw in your Central London hotel room or home, so you will feel comfortable in your nest.

* Efficiency meets clinical excellence. Delve into this service for a supplementary £25.

Here’s a step-by-step list of how the procedure works:

  1. Book Your Home Appointment

Ring us up or go online to set up your home Vitamin D test. Just pick a date and time that suits you. Make sure to inquire about the Vitamin D test price if you haven’t already.

  1. Confirm Details

After your booking, you’ll receive a confirmation call or email from us. During this exchange, we’ll verify the details of your appointment and let you know what preparations you might need to make.

  1. Prepare for the Test

Our customer care will brief you on any pre-test requirements, such as fasting or medication adjustments. We aim to ensure that the Vitamin D test UK guidelines are followed for an accurate reading.

  1. Wait for the Phlebotomist

On the day of the test, a certified phlebotomist will come to your home or hotel room in Central London. You can identify them by their ID badge and professional attire.

  1. Verify Credentials

Before the procedure, you’ll be shown credentials to ensure you’re comfortable and that you’re dealing with a certified phlebotomist.

  1. Set Up

The phlebotomist will then set up a sterile workspace. You can choose to sit or lie down, whichever you find more comfortable.

  1. Time for the Test

A tourniquet will be wrapped around your upper arm, and a vein selected. After cleaning the area, the phlebotomist will draw a small blood sample. It’s usually quick and with minimal discomfort.

  1. Seal and Label

Your blood sample will be sealed and labelled right in front of you, ensuring its integrity.

  1. Post-Test Care

A small adhesive bandage will be placed over the puncture site. You’ll be advised to keep your arm elevated briefly.

  1. Lab Analysis

Your sample will be taken to our specialised lab where the Vitamin D levels will be analysed.

  1. Receive Results

Within a few days, you’ll receive your results via a secure email or through our online portal.

  1. Next Steps

Based on your results, further recommendations or treatment plans may be advised. Our team will provide thorough guidance on what to do next.

So, there you have it: a concise yet comprehensive guide on how to get a Vitamin D test right in the comfort of your home or hotel room in Central London. Your convenience and health are our top priorities. Book now a Vitamin D Blood Test!


Vitamin D Blood Test Results – Explained

Understanding your Vitamin D blood test levels is essential for overall health. These results, measured in nanograms per millilitre (ng/mL), offer key insights into bone strength, immune function, and general well-being.

Deficient (<20 ng/mL): A level below 20 indicates a Vitamin D deficiency, putting you at risk for bone weakness and a compromised immune system.

Insufficient (21-29 ng/mL): If you fall in this range, your Vitamin D levels are below optimal, suggesting you might need more through diet or supplements.

Optimal (30-60 ng/mL): Levels in this range are generally considered healthy, providing the body with enough Vitamin D for various physiological functions.

High (>60 ng/mL): A result over 60 can mean too much Vitamin D, which is rare but could indicate toxicity and requires immediate attention.

Keep in mind that age, lifestyle, and overall health can also influence blood tests for Vitamin D result levels. While Vitamin D is an important marker, it’s part of a larger health profile that may include other tests and factors.

Armed with this information, you’re better equipped to make decisions that can positively impact your health.


Did you know?

What is a Vitamin D test?

A Vitamin D test measures the levels of this crucial vitamin in your blood, giving insights into bone health, immune function, and more.

Why do I need a Vitamin D test?

If you're experiencing symptoms like fatigue, bone pain, or frequent infections, a Vitamin D test can help determine if you're deficient or have an excess of Vitamin D.

How is the Vitamin D test done?

A small blood sample is taken, usually from a vein in your arm, and then analysed in a laboratory to measure the Vitamin D levels.

What units are used to measure Vitamin D?

The test results are typically measured in nanograms per millilitre (ng/mL).

What do my test results mean?

A level below 20 ng/mL indicates deficiency, 21-29 ng/mL is considered insufficient, 30-60 ng/mL is optimal, and above 60 ng/mL could indicate Vitamin D toxicity.


Is fasting required for a Vitamin D test?Is fasting required for a Vitamin D test?

Fasting is generally not required unless specified by your healthcare provider.

How often should I get tested?

The frequency of Vitamin D testing varies depending on individual health needs. Consult your healthcare provider for personalised advice.

How does Vitamin D testing differ from NHS testing?

Private blood test Vitamin D can offer quicker results and the convenience of at-home testing options. NHS tests are generally limited to those showing severe symptoms or with specific medical conditions.

What is the Vitamin D test price in the UK?

Prices for private Vitamin D tests can vary. It's essential to check with your chosen clinic or service for the most current pricing information.

Can I take a Vitamin D test at home?

Yes, some private services offer at-home Vitamin D test kits allowing you to take a blood sample yourself and send it to a lab for analysis. But, here at London Blood Tests we offer a phlebotomy blood draw from your home or hotel room. An extra charge of £50 applies for this service.

Our tailored tests will help you discover health insights to assess your wellbeing.


We now accept Klarna payments!



London Medical Laboratory is registered with and regulated by the Care Quality Commission. Certificate number: CRT1-4708702735

London Medical Laboratory is accredited in accordance with International Standard ISO 15189:2012

© Copyright 2024 London Blood Tests