All Tests, General Health, Nutrition & Vitamin Health
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Vitamin D Test

$ 99.0

Find out if you’re getting enough of nature’s sunshine vitamin.

Vitamin D is both a nutrient you eat as well as a hormone that's produced by your skin in response to sunlight exposure. It plays a significant role in bone health by helping regulate calcium and phosphorus, which are essential minerals that work together to build strong bones. Vitamin D also has a role in your nerve, muscle and immune systems, as well as your mental health. 

This vitamin D blood test evaluates 25-hydroxyvitamin D (25-D): the best measure of how much vitamin D is stored in your body. A prolonged deficiency in vitamin D has been shown to lead to fatigue, bone pain and even depression.  

While Vitamin D occurs naturally in very few foods, many are fortified with it, including dairy products and cereals. If vitamin D levels are low, vitamin supplementation may be helpful, especially when access to natural sunlight is limited. Vitamin D rich-foods include vitamin D fortified milk or plant-based alternatives, vitamin D fortified breakfast cereals and fatty fish (trout, salmon, tuna and mackerel and fish liver oils).

Test Details

Sample Type: Blood
Age: 18+
HSA/FSA: Accepted
Collection Method: In person at a Labcorp location
Results: 1 day from when your sample arrives at our lab

Preparation: No special preparation is needed.

What's Tested
Vitamin D

Measures the amount of vitamin D, a fat-soluble vitamin that supports bone health and immune function.

Patient Service Centers

Labs in more than 2,000 locations across the country.

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Visit the Labcorp OnDemand website to browse and purchase laboratory tests and create your Labcorp OnDemand account. All Labcorp OnDemand testing requires a healthcare provider order; for your convenience, Labcorp OnDemand has contracted with PWNHealth LLC and its affiliated professional entities (collectively, PWNHealth) to provide healthcare provider services. Visit a Labcorp location for sample collection; or, if using an at-home kit, collect your sample yourself. We’ll let you know when your results are ready to be accessed through your Labcorp OnDemand account or through your Labcorp Patient account. 

Your results will be provided to you through our secure online portal to view or print. Results are also provided to PWNHealth, which provides professional healthcare provider services for OnDemand tests. If you are accessing your results through your Labcorp Patient account, all users linked to the account will have access to all OnDemand test results. Results may also be provided to a local, state, or federal health authority, but only when legally required. For example, many states require the testing laboratory and healthcare provider to report test results for certain communicable diseases, such as sexually transmitted diseases or COVID-19, to local or state health departments.  


If you have questions or comments regarding the Labcorp Notice of Privacy Practices, or have a complaint about our use or disclosure of your PHI or our privacy practices, please contact: [email protected], call us at (877) 234-4722 (877-23-HIPAA) and ask for the Labcorp HIPAA Privacy Officer, or send a written request to: HIPAA Privacy Officer, Labcorp, 531 South Spring Street, Burlington, NC 27215. You also may file a complaint with the Secretary of the U.S. Department of Health and Human Services.

Your testing will be performed in a CLIA-certified clinical laboratory. Labcorp provides leading-edge medical laboratory tests and services through a national network of primary clinical laboratories and specialty testing laboratories. Our labs perform regular quality assurance testing to ensure our results are accurate.