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A vitamin D test measures the level of vitamin D in your blood. Vitamin D is crucial for maintaining healthy bones and supporting your immune system.
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Vitamin D helps regulate the amount of calcium and phosphate in the body. These nutrients are needed to keep bones, teeth and muscles healthy. Vitamin D deficiency occurs when the body doesn’t get enough vitamin D from sunlight or diet. Vitamin D deficiency can cause loss of bone density, osteoporosis, broken bones and rickets in children.
Vitamin D is sometimes called the sunshine vitamin because your body makes it from cholesterol when your body is exposed to sunlight. During the autumn and winter, you need to get vitamin D from your diet because the sun is not strong enough for the body to make vitamin D.
But since it's difficult for people to get enough vitamin D from food alone, the NHS recommends everyone (including pregnant and breastfeeding women) should consider taking a daily supplement containing 10 micrograms of vitamin D during the autumn and winter.
Between late March to the end of September, most people can make all the vitamin D they need through sunlight on their skin and from a balanced diet.
Before your body can use vitamin D, your liver must change it into another form called 25 hydroxyvitamin D, or 25(OH)D. The Vitamin D Test measures the level of 25(OH)D in your blood in order to determine whether your body has deficient, insufficient, sufficient or excess levels of vitamin D in your blood to enable/prevent your body from working well.
- We aims to deliver all stock items on a next day delivery service for all orders place before 2pm Monday-Friday.
- All non-stock items will be delivered in 2-3 days.
- Any special order items or items made to order are subject to the manufacturer’s delivery policy.
Note: We will advise at the time of the order if there are any non-stock items or specific lead times.
- Order Under £50.00 will incur a £5.00 delivery fee
- Orders Over £50.00 qualify for free delivery.
*The above charges are all ex vat and apply to all addresses within UK mainland. All orders for delivery outside of UK Mainland will be on a quote basis, please contact us for further information. Large Furniture items may incur additional delivery charges dependant on the postcode area. We will contact you for approval in the event this applies prior to processing the order.