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Vitamin D Test

Vitamin D Test

Do you have bone pain, fatigue or muscle twitching? It could be a sign of Vitamin D deficiency. Get tested at home to see if your Vitamin D levels are in normal range.

NowPatient's Vitamin D Test
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MEDICAL INFORMATION

Vitamin D Test Key Facts

Navin Khosla NowPatientGreen tick
Medically reviewed by Navin Khosla, B.Pharm
Written by
Created
October 4, 2024 (Current Version)

What are the health benefits of maintaining good Vitamin D levels?

Good levels of Vitamin D help to maintain:

  • Bone and teeth health and the prevention of osteoporosis
  • Muscle and nerve health
  • The immune system
  • Mood and immunity

What is a Vitamin D test kit and how does it work?

Vitamin D is essential for preventing osteoporosis, maintaining good bone health, your immune system, and regulating mood. If you lack energy, often feel rundown or tired, are over the age of 65, spend most of your time indoors, or have dark skin, you may be more likely to have low vitamin D. Use our easy and convenient finger-prick blood test to check your vitamin D levels at home. Take this test before taking any other medications, vitamin D supplements or minerals, and avoid taking biotin supplements for two days before the test. Vitamin D testing is used to check you have enough vitamin D in your body to maintain normal bodily functions.

Understanding your Vitamin D test results

The Vitamin D test kit checks for specific biomarkers in your blood. These include:

  • Vitamin D, produced by your skin when exposed to sunshine. Before your body can use vitamin D produced by sun exposure, it must be converted to another form of vitamin D, 25hydroxyvitamin D 25 (OH)D. Most vitamin D blood tests measure the level of 25(OH)D in your blood

How to use an at-home Vitamin D test kit

You can take our Vitamin D Blood Test in the comfort of your home using our finger-prick blood test kit. We’ll send you everything you need, including instructions and a pre-paid return envelope for your blood sample.

What are the benefits of the Vitamin D blood test?

  • The home test kits are assembled within the UK
  • All test kits are security sealed with confidential health test results
  • All laboratory testing is performed in an ISO:15189 accredited clinical laboratory

Frequently Asked Questions about Vitamin D tests

What does vitamin D do?

Vitamin D controls the absorption of calcium and phosphate by your body. It’s vital for the maintenance of healthy bones, teeth, and muscles, and plays a vital role in immune function and mental health. Vitamin D is important for pregnant women, breastfed babies, and children under five, for the prevention of conditions such as rickets.

Who is at risk of Vitamin D deficiency?

  • The elderly
  • People with darker skin
  • People who are very overweight, have obesity or have had gastric bypass surgeries
  • Pregnant and breastfeeding women
  • Anyone who spends a lot of time indoors
  • People with certain medical conditions such as liver disease, kidney disease, cystic fibrosis, Celiac disease or Crohn’s disease
  • People with osteoporosis, osteomalacia, or Paget’s disease

What are the symptoms of vitamin D deficiency?

Symptoms of low vitamin D levels include fatigue, muscle weakness, aches and bone pain, depression and frequent illnesses.

What is vitamin D?

Vitamin D is a fat-soluble vitamin, produced mostly through sunlight exposure. Some vitamin D is also obtained from food. Sources include oily fish, egg yolks, and vitamin D-fortified foods.

How much vitamin D do I need?

The recommended intake for adults and children over the age of four is 10 mcgs of vitamin D daily.

What is the normal range for vitamin D?

Currently there is no agreement on an ‘optimal’ vitamin D level, but a level below 50 nmol/L is generally considered insufficient.

Is a vitamin D test known by any other names?

Vitamin D tests are also sometimes referred to as 25-hydroxyvitamin D, 25(OH)D, cholecalciferol test, ergocalciferol test, calcidiol test, vitamin D2 test, or a vitamin D3 test.

How does the weather affect vitamin D levels?

During the autumn and winter months it is harder to get adequate amounts of vitamin D from time spent outdoors, causing your risk of a deficiency to be greater. Some areas of the UK are also sunnier than others, so where you live can affect your levels of vitamin D.

What does a Vitamin D test measure?

Most vitamin D blood tests measure the level of 25(OH)D (25hydroxyvitamin D) in your blood.

When should I test my Vitamin D levels?

You may want to get tested if you’re in a high risk group, or 3–6 months after starting treatment.

How accurate are at-home Vitamin D test kits?

The accuracy of at-home vitamin D test kits vary and are not a substitute for seeing your GP. If you are unsure about your results speak to your doctor.

How long does it take to get results from an at-home Vitamin D test?

Your Vitamin D test results will be available within one working day of receiving your sample at the laboratory.

What happens if my Vitamin D levels are too low?

Low levels of Vitamin D can lead to a loss of bone density, osteoporosis and fractures. Severe vitamin D deficiency can lead to rickets in children and other diseases.

Do I need a prescription to order an at-home Vitamin D test kit?

No. A prescription is not required to order an at home Vitamin D test kit. Simply go to our section on health test kits to order yours today.

How often should I retest my Vitamin D levels?

You don’t need to check your Vitamin D levels regularly, but you may want to get tested if you’re in a risk group, or 3–6 months after starting treatment.

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Everything You Need to Know About Home Health Testing

What is the Home Health Testing Service and how does it work?

Blood tests are a convenient way for you to investigate your health concerns. NowPatient’s Home Health Testing allows you to test hundreds of different biomarkers which can help confirm if your health concerns are valid or simply give you peace of mind that you are in good health.

See the video below to learn about how the service works:

What is a biomarker?

A biomarker, or biological marker, is something that can be measured to provide information about an individual’s health or the presence of disease. In the NowPatient Home Health Tests, biomarkers are used to identify normal or abnormal processes in the body, detect illnesses, monitor how a disease is progressing, or determine how well a treatment is working.

The Importance of Biomarkers include:

  • Enable early detection of diseases
  • Assist in selecting the right treatments
  • Help monitor recovery or treatment success
  • Provide a picture of overall or specific health status

What Health Tests does NowPatient offer in the UK?

NowPatient offers the following Home Health Tests for UK customers:

  • Kidney Function test
  • Liver Function test
  • Vitamin D test
  • Testosterone test
  • Cholesterol test
  • Diabetes test
  • Syphilis test
  • Chlamydia and Gonorrhoea test
  • Ovarian Cancer (CA 125) test
  • HIV test
  • 7 in 1 STI test
  • Nuts and seeds allergy test
  • Food allergy test
  • Milk and Milk proteins allergy test
  • Shellfish allergy test
  • Atopic Dermatitis/Eczema Profile test
  • Allergic Rhinitis/Asthma Profile test

What Health Tests does NowPatient offer in the US?

NowPatient offers the following Home Health Tests for US customers:

  • 2 Panel STI test
  • 6 Panel STI test
  • 10 Panel STI test
  • Testosterone test
  • Men’s Panel hormone test
  • Women’s Panel test

Is this a safe service?

Yes. For UK users, our laboratory operates 24 hours a day, 7 days a week, and is the UK’s largest diagnostic laboratory service which is UKAS and ISO-certified.

For US users, our American laboratory is CLIA-certified and registered with the Pennsylvania Department of Health.

Our telehealth clinicians review your test results and schedule a live virtual consultation to explain the findings. After the discussion, the results are made available in your account for viewing or download, so you can easily share them with your doctor.

Are Home Health Testing kits reliable?

Yes. Our UK kits are certified by UKAS and CE-marked. Our US kits are CLIA-certified and registered with the Pennsylvania Department of Health

  • Test kits have an outer seal design, with the product and regulatory information and a tamper-proof seal
  • UK Test kits are registered with the Medicines & Healthcare Products Regulatory Agency (MHRA) for distribution in the UK only
  • US Test kits are registered with the Pennsylvania Department of Health
  • Test kits are available in multi-language translations
  • Each test kit contains a warnings and precautions section with detailed information for the healthcare organisation and yourself as the patient
  • Video instructions supporting the specific sample collection are provided with each Self-Collect kit. Videos are designed to emphasise the important steps associated with capillary blood sampling and do not supersede or replace the specific end-user instructions provided with each kit

Is the service available in the United States and the United Kingdom?

Yes. This service is available in the United Kingdom and the United States.

Do I need to pay for this service?

Yes, this is currently a private service. However, in the UK, this may change and may be funded by the NHS, in the future. In the US, it may be possible it is covered by insurance, but this depends on your health plan.

How do I use the NowPatient Home Health Testing Service?

Navigate to the Home Health Testing Service Card which can be found in the ‘Private Care’ section of the account homepage.

Choose ‘View Tests’ from the Options Menu on the Home Health Testing Service Card. You can now start by entering the name of the test you’re interested in using the search box.

Or, browse the full range of tests available from NowPatient. To learn more about a specific test and its benefits, click ‘View Test’.

Once you’ve made your choice, click ‘Add to Cart’ to proceed.

Follow the steps below to complete your purchase:

How to Checkout on NowPatient
  • Go to Cart using Account Navigation - order
    1
    Go to Cart using Account Navigation
  • If there is an NHS service item in the Cart - An NHS Exemption Declaration will Pop Up - order
    2
    If there is an NHS service item in the Cart - An NHS Exemption Declaration will Pop Up
  • Complete the NHS Exemption Declaration for each NHS service item - order
    3
    Complete the NHS Exemption Declaration for each NHS service item
  • Select ‘Checkout’ - order
    4
    Select ‘Checkout’
  • Select Delivery Address - order
    5
    Select Delivery Address
  • Select Delivery Method - order
    6
    Select Delivery Method
  • Confirm Billing Address - order
    7
    Confirm Billing Address
  • Review Order - order
    8
    Review Order
  • 9
    Submit Payment
  • Order Completed - order
    10
    Order Completed
  • Return to Account Homepage - order
    11
    Return to Account Homepage
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What Happens Next:

  1. Home Test Kit Delivery
    Your Home Health Testing Kit will be delivered to your home or preferred address.
  2. Collect Your Sample
    Follow the step-by-step instructions included in the kit to collect your sample.Test kit instructions
  3. Return Your Sample
    Use the prepaid return packaging provided to send your sample back to our laboratory.
  4. Processing & Notification
    Once your sample has been analysed, you’ll receive a notification letting you know your results are ready.
  5. Book Your Consultation
    Schedule an appointment with one of our licensed clinicians to review your results. Follow the instructions below to book:

    How to Book a Consultation With NowPatient
    • Book gp consultation slideshow 1
      1
      Book Consultation
    • Book gp consultation slideshow 2
      2
      Choose Consultation Date
      Next, you’ll be taken to the ‘Consultation Date’ screen, where you can select your preferred consultation date. You can also add any notes that might assist the clinician during your session. Click ‘Continue’ to proceed.
    • Book gp consultation slideshow 3
      3
      Choose Consultation Time
      You will now see the ‘Consultation Time’ screen. Select your preferred time for the consultation and then click ‘Continue’.
    • Book gp consultation slideshow 4
      4
      Choose Clinician
      On the ‘Choose Clinician’ screen, you’ll be able to view available clinicians and select the one you prefer. You can filter the list by gender and spoken languages. Once you’ve made your selection, click ‘Continue’.
    • Book gp consultation slideshow 5
      5
      Booking Confirmation
      You will now arrive at the ‘Booking Confirmation’ screen, where you can review a summary of your booking. This screen also includes an advisory titled ‘Pre-consultation Requirements’, which offers helpful tips on how to prepare for your live video consultation. Click ‘Continue’ to proceed.
    • Book gp consultation slideshow 6
      6
      Safety Information & Reminders
      You’ll be asked to provide safety information, including: - The address where you will be during the consultation - Emergency contact details You can also opt to receive an SMS reminder 30 minutes before your scheduled video consultation.
    • Book gp consultation slideshow 7
      7
      Final Confirmation
      Click ‘Confirm Booking’ to complete the process. A pop-up will appear to confirm your booking, and you will be redirected to your account homepage. You’ll also receive confirmation via In-App and Push notifications.
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  6. View Your Results
    After your consultation, your results will be available in the ‘Reports & Letters’ section on the account homepage.

How do I return the sample to your laboratory?

We supply you with a return system package. Use this to send back the sample. Samples are fully tracked and can be posted from any Royal Mail post box, for UK customers, or USPS, for US customers.

How long does it take to get the test results back?

Test results can take up to 10 working days to process from the day we receive your sample back.

What happens during the consultation?

Here’s how the virtual consultation will generally go:

  1. Introduction & Verification
    The clinician will begin by introducing themselves and confirming your identity to ensure privacy and confidentiality.
  2. Review of Test Results
    They will walk you through your test results, explaining what each value means in simple, understandable terms.For example, if your cholesterol is high, they’ll explain how that might affect your health.
  3. Personalized Interpretation
    The clinician will consider your health history, lifestyle, and any symptoms you report to provide context. This helps them give a more accurate, personalised interpretation of your results.
  4. Health Advice & Recommendations
    Based on your results, the clinician may offer advice such as lifestyle changes, dietary suggestions, or recommend further testing or follow-up care.If the results indicate something that needs medical attention, they may advise you to consult your doctor or specialist.
  5. Answering Your Questions
    You’ll have time to ask questions or discuss any concerns. The goal is to make sure you understand your health status and next steps clearly.
  6. Next Steps & Support
    After the consultation, your results and a summary of the discussion will be made available in the ‘Reports & Letters’ section on your account homepage.

Are my results confidential?

Yes, we follow strict General Data Protection Regulations (GDPR) which came into force in May 2018. This places legal requirements on ourselves to ensure your personal data is managed securely with utmost confidentiality. Records are maintained of the processing that is carried out and reported when breaches of the regulation do occur. Our platform is also HIPAA compliant which means we are able to handle PHI (Personal Health Information) securely.

Are you able to prescribe a treatment plan, if my results indicate I need treatment?

For UK users, our prescribing clinicians may be able to provide a private treatment plan, subject to their clinical judgment. Unfortunately, we do not operate a service where you can request a certain medication.

What are the limitations of the Home Health Testing service?

All test kits have a certain level of inaccuracy, therefore results can only be taken as estimates. It should be noted that all tests are performed in strict accordance with the manufacturer’s instructions and test performance is regularly monitored through internal and external quality control for test result interpretation.

We do not recommend sending samples back between Friday noon and Monday morning due to delays.

Are there any concerns or risks I need to be aware of?

Tests cannot be performed if samples fall short of the quality, volume, or other eligibility criteria. In these cases, the laboratory may need to reject the samples, and not carry out processing. Sometimes the laboratory is able to rectify a situation and although turnaround times may be affected, it avoids having to arrange for samples to be taken again.

Tests cannot be performed if:

  • incorrect sample types are received
  • samples are received unprotected from light when they are required to be covered at the point of venepuncture
  • samples are received in incorrect containers
  • no sample received
  • samples mislabelled, unlabelled, or with no forms, or no clinical information
  • samples are broken or have leaked in transit
  • samples are contaminated (e.g. being in the same bag as a leaking sample)
  • sample stability time has been exceeded (stability time is test dependent, and also refers to tests that can only be carried out on certain days of the week)
  • samples are received in expired tubes
  • the laboratory will not accept samples packaged with needles of any kind