A simple blood test can help determine if you are vitamin D deficient. The most common vitamin D blood test is called the 25-hydroxyvitamin D (25-OH D). This tests for the most circulated form of vitamin D – 25 (OH) – and is currently considered the best indicator of vitamin D supply to the body.
YorkTest offers a quick and reliable Vitamin D Test that you can do from the comfort of home. The YorkTest Vitamin D Test kit consists of a simple finger-prick blood sample which is used to measure your vitamin D levels.