Vitamin D (25 OH) Blood Test

This vitamin D test helps determine if your levels are low, which could be contributing to symptoms like fatigue and frequent illnesses.

£39.00

Do you often feel tired, rundown, or struggle with muscle aches and pains?

You may have vitamin D deficiency, especially if you spend little time outdoors, have darker skin, or are over 65 — all factors that can affect your ability to produce vitamin D.
This vitamin D test helps determine if your levels are low, which could be contributing to symptoms like fatigue and frequent illnesses.

Results estimated within 7-10 working days
Convenient testing options
Personalised doctor's report
Free delivery

What's in the test?

Vitamins

Vitamin D
Despite its name, vitamin D is actually a hormone produced by your skin when exposed to sunlight. Before your body can use the vitamin D produced by sun exposure (known as vitamin D3), it must be converted into another form called 25 hydroxycholecalciferol (25 OH).
Vitamin D (25 OH) is the major circulating form of vitamin D, and your vitamin D (25 OH) level is considered the most accurate indicator of vitamin D supply in your body.
Vitamin D is essential for healthy bones and teeth, as it helps your body absorb calcium. It also plays a role in muscle health, immune function, and mental health.
Symptoms of low vitamin D include muscle weakness, mood swings, and fatigue. Many people in the UK have low vitamin D levels, particularly those with dark skin or those who don’t spend much time outdoors.
Small amounts of vitamin D can be obtained from food, especially oily fish, eggs, and vitamin D-fortified foods. However, if you have a vitamin D deficiency, improving your levels through food alone may not be sufficient.

How to prepare for your test

Please follow these instructions to ensure accurate results:

Take your sample at least 24 hours after any vitamin or mineral supplements.
Do not take biotin supplements for 2 days before your test, and discuss this with your doctor if it is prescribed.

Directions:

Please follow these instructions to ensure accurate results:
Take your sample at least 24 hours after any vitamin or mineral supplements.
Do not take biotin supplements for 2 days before your test, and discuss this with your doctor if it is prescribed.

Suitable for:

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Delivery of Products

Enjoy free delivery on orders over £50. A delivery fee of £3.96 applies to orders under £50.

We will arrange for delivery of the products you order by the method and to the address which you specify in the check-out procedure.

Please note orders placed over the weekend will be dispatched within the following 3-5 working days. Our opening hours are Mon - Fri 9:00am -5:30pm if you have any queries regarding order fulfillment please get in touch via info@gutandhealth.co.uk or by calling 03330504030.

Products will be dispatched using third-party providers such as Royal Mail or overnight courier services. You will be notified of your delivery by email or text and provided updates as to its progress. If you need to change your delivery options or request the parcel to be left in a safe place, you can do so with the overnight courier but not with Royal Mail. Other delivery options are available on request.

Tracking of Orders

You will be notified of your delivery throughout its journey by email or text by our third-party providers and given updates as to its progress.

Returns and Refunds

At Gut and Health, we want you to be delighted with the products you purchase from us.

However, if you wish to return the item purchased, refunds will only be given if the item is posted back to us within 14 days of it having been despatched. Please ensure that you obtain proof of postage.

Refunds will only be given if the item is in its original, unopened packaging. If the item has been opened, used, incomplete, or damaged, a refund will not be given unless the product is found to be faulty.

If the delivery costs are not met, then we will be entitled to deduct the direct costs of recovering the goods from the amount to be re-credited to you.

Please allow up to 10 working days for your refund to reach you. Monies will be sent to the debit or credit card that you used to make the purchase. Your rights to return the items do not apply once the 14 day period has expired.

If you need to speak to one of our customer service team, please contact us on either 03330 504030 or send an email to info@gutandhealth.co.uk.

Testing Kits

Refunds or free re-tests are not possible in the circumstances where an insufficient or incorrect sample has been taken. Customers must ensure they strictly adhere to the testing guidelines provided otherwise additional costs and delays may be incurred.

If your testing kit has been purchased from our website and already dispatched, you can return it unopened and unused with the original packaging for a refund within 14 days of it having been dispatched. Please ensure you obtain proof of postage.

If your testing kit has already been opened, used, or is incomplete or damaged, we are unable to provide a refund, although a refund will be given if the product is faulty. Where applicable, and in order to cover our costs for the test kit and its delivery, we reserve the right to offer a refund less £35.00 as our administration fee.