All Tests, Nutrition & Vitamin Health
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Vitamin Deficiency Test

$ 159.0

Find out if you’re getting enough vitamin D, B12 and B9 (folate) with this vitamin test.

Whether you want to evaluate your nutrition plan, or just want to be sure you're getting enough of the good stuff, this Vitamin Deficiency Test assesses your levels of vitamin D, vitamin B12 and vitamin B9. This test provides insight of the possible gaps of your nutrition and support in making better food choices to nourish your body.  

Vitamin D plays a significant factor in bone health. Vitamin B9, also known as folate or folic acid, is important in red blood cell formation, healthy cell function and growth. Vitamin B12, plays a role in red blood cell formation along with cell metabolism, nerve function and DNA production.

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: Fast for 12 hours (no food or drink, except water) before sample collection. If you’re taking a supplement containing biotin (also called vitamin B7 or B8, vitamin H, or coenzyme R), commonly found in products promoting nail, skin and hair health, it is recommended that you wait at least 72 hours from your last dose before sample collection.

What’s Included in this Package

Vitamin B12 and Folate Test

Vitamin B12 and folate support many cellular functions in the body. B12 supports nerve function, and folate (aka folic acid or vitamin B9) converts carbohydrates into energy and to form DNA. Both B12 and folate are essential to red blood cell production. A B12 deficiency or a folate deficiency may lead to fatigue, weakness or anemia. 


A vitamin B12 or folate deficiency may occur when the body either doesn’t get enough through dietary intake, or from poor absorption. Vitamin B12 is not produced by plants. Foods rich in vitamin B12 include meat, eggs, dairy products and other foods from animals. Foods rich in folate include broccoli, spinach, asparagus, lima beans, fruits and enriched grain products. Folate is critical during periods of rapid growth, such as during pregnancy and fetal development. However, some people simply can’t absorb either B12 or folate, no matter how much they eat.¹


Vitamin B12 and folate work closely, making red blood cells and helping iron work better in your body.
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Vitamin B12

Measures the amount of vitamin B-12, a water-soluble vitamin that plays a vital role in the health of nerves and red blood cells.

Folate (Folic Acid)

The B vitamin that plays a vital role in making DNA, the genetic material in cells. Folic acid is a synthesized version of folate found in processed foods and supplements. A folate deficiency can lead to health complications, especially in pregnant women.

Vitamin D Test

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).

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

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

About This Test

What's Tested

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.