This product is a home blood test kit that measures the 25-hydroxy form of vitamin D in your blood—the standard marker of vitamin D status. Adequate vitamin D supports bone health, immune function, and general wellbeing. This test helps you identify whether your vitamin D levels are sufficient, deficient, or too low.
Provides a reliable measure of your body’s overall vitamin D stores
Useful if you live in low sunlight areas, have limited sun exposure, or suspect deficiency
Helps guide supplementation, diet, or lifestyle changes
Convenient home collection, with results processed by accredited laboratories
Vitamin D levels vary with season, sun exposure, skin pigmentation, and supplementation
A single reading may not reflect long-term vitamin D status — trends over time are informative
This test is for informational purposes only and should not replace medical advice
Abnormal or very low results should be followed up with a qualified healthcare professional
All samples are processed by accredited laboratories
At MeditestDirect, we offer a wide range of trusted home testing kits from general health and wellness to more specific medical checks. Whether you're monitoring your body or taking control of your health journey, we've got a test that fits. Your results are processed securely and kept completely confidential, giving you peace of mind every step of the way.
With MeditestDirect, you're in control. Choose from a full range of easy-to-use home test kits, all designed to give you accurate results without the wait. From everyday check-ups to targeted health concerns, every test comes with full privacy and secure result delivery—because your health information should stay yours.
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Despite its name, vitamin D is actually a hormone that’s produced by your skin when it’s exposed to sunshine. Before your body can use 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 so your vitamin D (25 OH) level is considered the most accurate indicator of vitamin D supply to 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. Low vitamin D symptoms include muscle weakness, mood swings, and fatigue. Many people in the UK have low vitamin D levels, and people with dark skin and people who don’t spend much time outdoors are particularly at risk. Small amounts of vitamin D can be obtained from food, especially oily fish, eggs, and vitamin-D fortified foods. But if you have a vitamin D deficiency, you’re unlikely to be able to improve your levels by food alone.
