All Tests, Nutrition & Vitamin Health
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Micronutrient Test

$ 239.0

Feeling low on energy? Find out if you’re low in these key vitamins and minerals.

This test measures the levels of six essential micronutrients in your blood, including three vitamins (vitamin D, vitamin B12 and folate) and three minerals (magnesium, iodine and zinc). Empower yourself with insights into your diet so you can make informed decisions about your nutrition and performance.

Micronutrient Test
$ 239.0

Test Details

Sample Type: Blood
Collection Method: In person at a Labcorp location
Age: 18+
Results: 2-4 days from when your sample arrives at our lab
HSA/FSA: Accepted
Test must be taken by purchaser

Preparation: 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, we recommend that you wait at least 72 hours from your last dose before taking the test.

What's Tested
  • Vitamin D

    Labcorp’s vitamin D test included in this panel measures the level of 25-hydroxy vitamin D in your blood. Vitamin D helps your body regulate calcium metabolism which in turn helps maintain healthy bones, control infections, reduce inflammation and more. Your skin produces vitamin D through sunlight exposure. Vitamin D is also found in foods such as fatty fish, mushrooms, egg yolks and fortified milks. When you’re deficient in vitamin D, you may experience symptoms like fatigue, muscle weakness and depression. Additionally, you could become more prone to having fractures from falls if you have a vitamin D deficiency.

  • Vitamin B12

    Vitamin B12 plays an essential role in red blood cell formation, cell metabolism, nerve function and more. It’s found in foods such as nutritional yeast, plant-based milks and certain cereals. When you’re deficient in vitamin B12, you may experience symptoms like fatigue, weight loss and loss of appetite. 

  • Folate

    A natural form of vitamin B9, folate helps your body make new red blood cells and DNA, and it plays an important role in a fetus’s development. It’s found in foods such as leafy greens, beans, seafood, eggs and more. When you’re deficient in folate, you may experience symptoms like fatigue and weight loss.

  • Magnesium

    Magnesium is a type of electrolyte—an electrically charged mineral—that helps your muscles, nerves and heart work properly. It’s found in foods such as legumes, nuts, seeds, greens and whole grains. When you’re deficient in magnesium, you may experience symptoms like fatigue, muscle cramps, numbness and/or tingling, an irregular heartbeat and more. Magnesium can impact the balance of other electrolytes, including potassium. It is recommended to consult with your healthcare provider to discuss your test results and next steps.

  • Iodine

    This trace mineral supports your thyroid function by helping to produce thyroid hormones. It’s found in foods such as iodized salt, milk, yogurt, cheese, shrimp, cod and tuna. When you’re deficient in iodine, you may experience symptoms like fatigue, weight gain, dry skin, confusion and more. 

  • Zinc

    This important mineral helps support your immune system and metabolism. It’s found in foods such as red meat, chicken, oysters, beans, lentils, nuts and chickpeas. When you’re deficient in zinc, you may experience symptoms like weight loss, loss of appetite, decreased immunity and hair loss. 

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  • Micronutrients and macronutrients are found in the foods we eat, and our body needs to take in adequate amounts of both to function properly. Micronutrients consist of vitamins and minerals that optimize our body’s performance. Macronutrients include fats, carbohydrates and proteins that provide energy in the form of calories. 


    This micronutrient test can help identify if you’re deficient in certain vitamins and minerals, empowering you to make informed decisions on your health.

  • A healthcare professional at one of our more than 2,000 Labcorp testing locations will take a blood sample from a vein in your arm using a small needle. Your results will then be available online within 2-4 days of when your sample arrives at our lab. 


    We recommend you consult with a healthcare provider if you have any questions about your results.

  • The most common vitamin deficiencies in the U.S. include1:

    • Vitamin D
    • Vitamin B12
    • Vitamin B6
    • Folate

    The most common mineral deficiencies in the U.S. include1:

    Our Micronutrient Test covers five of these widespread deficiencies, as shown in bold above.  

  • Some people are at higher risk of experiencing vitamin and mineral deficiencies as well as “micronutrient inadequacies,” which occur when you get less than the recommended dietary intake but may not have obvious symptoms. People at higher risk include2:

    • People with gastrointestinal disorders such as Crohn’s disease, celiac disease and inflammatory bowel disease (IBD), given that these conditions can impact micronutrient absorption (folate, vitamin B12, zinc, magnesium)
    • People who follow a vegan or vegetarian diet, as some micronutrients are more commonly available in animal-based foods (folate, vitamin B12, iodine, zinc)
    • Older adults, because they may have a reduced appetite, reduced micronutrient absorption and/or reduced exposure to sunshine (which is required for the body to make vitamin D)
    • People taking certain medications (e.g., proton pump inhibitors) that may affect the body’s ability to absorb micronutrients (vitamin B12 and magnesium)
    • People with unbalanced, low-quality and/or restrictive diets, which can mean you’re not getting the full diversity of micronutrients you need

    Health-conscious individuals and athletes may also be interested in checking that nutritional deficiencies aren’t holding back their performance, recovery and overall health. 

  • You can find more information about micronutrients on the following websites:

  • 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:, 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.