Vitamins Blood Test Panel

Quick Facts

• Sample: Blood
• Fasting: Fasting for at least 12 hours is required. Avoid vitamin C supplements and fruits 24 hours before collection. Stop biotin 72 hours prior. Draw blood before starting the Schilling test, transfusions, or B12 therapy.
• Turnaround: 10 business days. May take longer based on weather, holiday, or lab delays.

What's Included

Vitamin A

• Vitamin A: A fat-soluble vitamin that supports growth, healthy teeth, bones, skin, and vision. Helps assess vitamin A status and identify possible deficiencies.
• Vitamin A (Retinol): The main active form of vitamin A in the blood. Helps assess vitamin A levels and identify deficiencies or excess. (Not included in LabCorp)

Vitamin B1 (Thiamine)

• Vitamin B1 (Thiamine), Whole Blood: An essential vitamin that helps convert food into energy and supports healthy nerves, heart, and muscles. Helps identify deficiencies that may affect energy production and nerve function.

Vitamin E

• Alpha Tocopherol: The main form of vitamin E in the blood that helps protect cells from oxidative damage. Helps assess vitamin E levels and identify possible deficiencies.
• Beta-Gamma Tocopherol: Forms of vitamin E that act as antioxidants to protect cells. Helps assess vitamin E levels and antioxidant status.

Vitamin B6

• Vitamin B6: A B vitamin that supports protein metabolism, nerve function, and immune health. Helps assess vitamin B6 levels and identify possible deficiencies or excess. . 

Folic Acid (Folate)

• Folate (Folic Acid): A B vitamin that helps the body make new cells, produce healthy red blood cells, and form DNA. Measuring folate levels helps identify deficiencies that may contribute to anemia and is especially important during pregnancy for healthy fetal development.

Vitamin B12

• Vitamin B12: An essential vitamin that supports healthy nerve function, red blood cell production, and DNA formation. Measuring vitamin B12 levels helps identify deficiencies that may contribute to anemia, fatigue, or nerve problems.

Vitamin C

• Vitamin C: A water-soluble antioxidant that protects cells, supports immune health, helps the body absorb iron, and promotes wound healing. Helps assess vitamin C levels and identify deficiencies.

Vitamin D 25-Hydroxy

• Vitamin D, 25-Hydroxy: The primary circulating form of vitamin D in the blood, reflecting the body's vitamin D stores. Helps assess vitamin D status and identify deficiencies that may affect bone health and calcium absorption.

Vitamin K1

• Vitamin K1: A fat-soluble vitamin that supports blood clotting, bone health, and normal body function. Helps assess vitamin K status and identify deficiencies that may affect clotting and bone metabolism.

Benefits

• Measures 11 vitamin biomarkers in one blood draw.
• Checks vitamins tied to energy, nerve function, and red blood cells.
• Includes bone-related vitamins D and K1 alongside antioxidant vitamins C and E.
• Gives you a broad view of your vitamin levels.
• Results are available online for you to review and share with your provider.

Who Is This Test For?

• Adults who want a broad look at their vitamin status.
• People who follow vegan or animal-product-free diets and want to check B12.
• Anyone with a condition that affects nutrient absorption (malabsorption).
• Adults who want to review vitamin levels alongside their healthcare provider.

How It Works

1. Order Your Test Online
2. Visit a Local Lab
3. Get Results Online

FAQ

1. Do I need to fast or prepare for this test?

Yes. Fasting for at least 12 hours is required. Avoid vitamin C supplements and fruits 24 hours before collection. Stop biotin 72 hours prior. Draw blood before starting the Schilling test, transfusions, or B12 therapy.

2. How quickly will I get results?

Expect results in 10 business days. May take longer based on weather, holiday, or lab delays.

3. What can my results tell me?

Together, these measurements give you a snapshot of vitamins involved in energy metabolism, nerve and immune function, red blood cell formation, bone health, antioxidant protection, and blood clotting. Looking at them side by side can help you and your provider see which areas of nutrition may deserve a closer look.

4. How do I interpret the results?

Each vitamin tells a separate story, so no single value should be read in isolation. Your symptoms, diet, supplements, medications, medical history, and how closely you followed the preparation steps can all shape what a result means. Values do not need to move in the same direction, and one normal or abnormal value does not settle the question on its own. Review the full set with a qualified healthcare provider.

Disclaimer: Reference ranges may vary by laboratory. Listed ranges are general guidelines and may differ from those used by the performing lab. Always consult your healthcare provider for interpretation.

5. What should I do if my results are abnormal?

Start by sharing your report with a qualified healthcare provider, who can look at the pattern across all your results rather than a single number. They can decide whether anything further is needed. An out-of-range value alone does not mean you have a condition or need treatment.

Pre-test preparation

• Fasting for at least 12 hours is required.
• Avoid vitamin C supplements and fruits 24 hours before collection.
• Stop biotin 72 hours prior.
• Draw blood before starting the Schilling test, transfusions, or B12 therapy.