Ordering the Vitamin D Test | Europe
Vitamin D plays a key role in supporting bone strength, muscle function, and immune response. Low levels can lead to weak bones, muscle cramps, and frequent tiredness. Interestingly, vitamin D also helps regulate mood and may influence how the body absorbs calcium, which is important for keeping bones strong and reducing the risk of osteoporosis.
Ordering this test can help you:
- Identify if low vitamin D is causing bone pain or muscle weakness
- Track how well your body absorbs calcium for bone health
- Monitor vitamin D levels if you have limited sunlight exposure
- Check for deficiency if you experience frequent fatigue or mood swings
- Support your immune system by keeping vitamin D in a healthy range
Who Should Consider Vitamin D Level Testing
People who spend most of their time indoors, have darker skin, or live in areas with little sunlight may notice ongoing tiredness, joint pain, or frequent muscle cramps. For example, someone who works long hours in an office and feels achy or unusually tired during winter months may benefit from checking their vitamin D status.
Ordering this test may also be helpful if you:
- Have a family history of osteoporosis or brittle bones
- Experience bone pain or muscle weakness without a clear cause
- Notice mood changes or symptoms of seasonal affective disorder
- Follow a vegan or vegetarian diet with limited vitamin D sources
- Have chronic digestive issues, such as celiac disease, that can affect nutrient absorption
Testing can help you find out if low vitamin D is linked to symptoms like bone loss, muscle cramps, or low energy, and allows you to take steps to improve these issues. Delaying this test may mean missing the chance to address bone thinning or muscle weakness before they become more difficult to manage.
Preparing for Bone Health and Immune Function Testing
Fasting is not required for this test, so you can eat and drink as usual before your sample is collected. Always follow any instructions your doctor or healthcare provider gives you to make sure your sample is collected correctly and your results are as useful as possible.
Labs Included When Ordering Your Vitamin D Test
| Test Name | Reference Range | What This Test Measures | Low and High Levels of 25-Hydroxyvitamin D |
|---|---|---|---|
| 25-Hydroxyvitamin D | 30–100 | This marker shows the total amount of vitamin D in your blood, including both D2 and D3 forms. It helps check if your body has enough vitamin D for strong bones, muscle function, and immune support. |
High levels mean you may be getting too much vitamin D, which can cause calcium buildup and kidney problems.
Low levels mean your body may not be getting enough vitamin D, which can lead to weak bones, muscle pain, or increased risk of bone loss. |
Reference ranges may change slightly over time as labs update their guidelines and testing methods.
Vitamin D Test FAQ
Is there Vitamin D Test testing near me?
This is a test kit that you can use locally, and you can check the draw location link at the top of the page for nearby collection sites. If you have ongoing bone pain or muscle weakness, having a convenient location makes it easier to get tested and start addressing these symptoms quickly.
How do I interpret the test results?
While your treating physician should review your results, we also offer a one-on-one test results review with our clinical team to help you understand what your numbers mean and what steps you can take next.
What is the cost of the test?
The price you see includes standard shipping to you and back to the lab, but draw fees may apply at the collection site. Ordering this test can help you find out if low vitamin D is causing symptoms like bone pain or tiredness, so you can start improving your bone strength sooner.
How often should I retest?
It’s recommended to retest every 3–6 months if you are making changes to your diet, supplements, or sunlight exposure. Regular testing helps you track your progress and make sure your vitamin D stays in a healthy range for strong bones and muscle function.
How accurate is the test?
This test uses liquid chromatography-tandem mass spectrometry (LC-MS/MS), which is highly specific and sensitive for measuring vitamin D levels, with a specificity of 99% and sensitivity of 98%. TrueHealthLabs.com partners with CLIA-certified and CAP-certified laboratories to uphold rigorous testing standards for dependable results.
Important Notes
READ: These tests are available for European countries only.
Medical Review Board
Reviewed by Jeff Donohue M.D. from Body Logic and Brady Hurst DC, CCCN. Written by True Health Lab’s team of editorial health contributors.
Disclaimer: This information is for educational purposes only and not intended as medical advice. Consult your healthcare provider for personalized guidance.
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