1. 1. Order Your Tests

    Browse from hundreds of tests and select the ones you want.

  2. 2. Visit a Lab

    Visit a lab near you at your convenience; no appointment time necessary.

  3. 3. Get Your Results

    Physician-reviewed lab results are available online within 24-72 hours.

Vitamin B6 Test

This Vitamin B6 Test measures the amount of vitamin B6 in the blood.

Order Test
Test Preparation:
Fasting is required (i.e. no eating or drinking anything besides water for 8 hours prior to testing)
Testing Method:
Blood draw

This Vitamin B6 Test measures the amount of vitamin B6 in the blood. Vitamin B6 is essential in the production of serotonin and norepinephrine which are used to transmit signals in the brain. Deficiencies in vitamin B6 can cause anemia, lethargy, and in some instances, conjunctivitis (pink eye). Foods such as grains, vegetables, fish, and dairy products are rich in vitamin B6. To discern a vitamin B6 deficiency, Priority Lab Testing offers accurate and reliable results with our Vitamin B6 Test.

How Our Vitamin B6 Test Works

Do you think you might have a vitamin B deficiency? Great news, at Priority Lab Testing, we offer vitamin B6 Tests. You can have the test done at any of our 4,000+ testing facilities across the country. 

So, after placing an order for your vitamin B6 test online, visit a lab near you. Our certified professionals will attend to you upon entry. This will involve collecting a blood sample using the skin prick technique, which is painless. 

We understand that you might have a busy schedule. Fortunately, you won’t have to miss or reschedule anything. Our efficient processes ensure you’ll be in and out of our facility in less than 30 minutes. 

We will send your sample to a CLIA-certified laboratory for testing, and you can expect to receive results within 24 to 72 hours.

Common Symptoms of Vitamin B6 Deficiency

Vitamin B6 is important for many bodily functions. It helps the body to make hemoglobin, which carries oxygen in the blood. It also aids in the breakdown of carbohydrates and fats.

Vitamin B6 is important for a healthy immune system and plays a role in brain development during infancy and childhood. A vitamin B6 deficiency can cause anemia, dermatitis, and nervous system problems.

If you experience any of the following symptoms, it might be a good idea to take our vitamin B6 test. 

  • weakness
  • confusion
  • depression
  • irritability
  • muscle pain

A vitamin B6 deficiency can come as a result of numerous factors, including:

  • Not getting enough vitamin B6 in your diet 
  • Certain medications that deplete vitamin B6 levels, such as birth control pills, anticonvulsants, and isoniazid
  • Excessive alcohol consumption 
  • Malabsorption disorders

How to Interpret Your Results

While interpreting lab tests is often challenging, that’s not the case with ours. Aside from sending them to you promptly, we present them in an easy-to-understand way. 

We’ll send the results in your email via a secure link. You’ll notice a chart and different columns indicating whether your vitamin B6 levels are normal or abnormal and, if it’s the latter, to which extent. 

Vitamin B6 Test Vs. Comprehensive Vitamin Panel

Deficiencies of various vitamins can project similar symptoms. As such, you may not be sure whether to test for which vitamin. In this case, Priority Lab Testing also offers the Comprehensive Vitamin Panel. This test includes vitamin B6, as well as ten other vitamins. 

A comprehensive panel is a great option if you are experiencing fatigue, weakness, or other nonspecific symptoms. It’s also recommended for people who want a general overview of their vitamin and mineral status. You can also order individual tests for specific vitamins, such as vitamin B12 or vitamin D.

So, the vitamin B6 test only focuses on one vitamin, while the comprehensive panel tests for 11 vitamins.


  • No special preparation is required for this test. Simply visit one of our testing facilities at your convenience.

  • If your results indicate abnormal levels, it could indicate a vitamin B6 deficiency. In such an event, we recommend you follow up with your healthcare provider to discuss treatment options. 

  • Most people only need to test for vitamin B6 once. However, you may need to test more frequently if you have a condition that can cause malabsorption, such as celiac disease. You should also consider testing more often if you take medication that can cause vitamin deficiencies.

  • You can expect to receive your results within 24 to 72 hours.