Vitamin D (25 OH) Blood Test
This at home test measures your vitamin D levels. This fat-soluble vitamin is essential for maintaining normal blood levels of calcium and phosphorus, the formation and maintenance of healthy bone and teeth, and also plays an important role in immune health.
Number of biomarkers tested: 1
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• Blood collection device using finger-prick method
• Tracked 24 return mailing bag
• A doctor validated report
• 2 working days turnaround from sample receipt at lab
Order by 4pm weekdays and your test will be the dispatched the same day (excluding bank holidays). Royal Mail tracked 24 shipping is provided free of charge. You will be emailed your tracking number.
This test measures 25-OH vitamin D. Your results will show the level of vitamin D in your blood and whether this level is deficient, insufficient, normal or elevated.
You should take this test before you take any vitamin or mineral supplements. Do not take biotin supplements for 2 days prior to this test. If you are taking prescribed biotin you should discuss this with your doctor.
25-OH vitamin D
How it works
Choose your test
Take control of your health from our range of home-to-lab tests and we’ll send the kit straight to your door.
Post your sample
Simply collect your sample at home and return it to our network of fully accredited labs for expert analysis.
Get your results
Your results will be delivered via our secure online health hub within days.