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Vitamin B6 Blood Test

* This is not a home test kit. You will need to visit a local lab for testing.

Also Known as

B6, PLP, Pyridoxal-5-Phosphate, Pyridoxine

The Purpose of a Vitamin B6 Test

B6, also known as pyridoxal phosphate, is part of the B complex group of vitamins. These nutrients do everything from safeguarding your heart health to regulating your metabolism. A deficiency in any of the B vitamins, including B6, can lead to a range of health problems such as depression, anemia, and low immunity, and symptoms including nausea, fatigue, and memory loss. B6 is typically consumed in food or supplements. You can be at risk of deficiency if you don’t get enough B6 every day or if you have a condition that prevents absorption, such as alcohol use disorder, autoimmune disorders, or kidney disease. A vitamin b6 test helps you keep tabs on your levels so you can track your health and make any needed changes to your diet or lifestyle.

Vitamin B6, Plasma (926)
Vitamin B6, Plasma (004655)

What Does the B6 Blood Test Measure?

This test tells you how much B6 you have in your body.

Who Should Take a B6 Test?

A B6 blood test is a smart, proactive health tool for people who have medical conditions that interrupt vitamin absorption. A test can also help pinpoint whether symptoms—which can also include rashes, weight loss, and mood shifts—are caused by a vitamin deficiency.

B6 Lab Test Preparation

The blood sample is usually collected in the morning after an overnight fast, preferably before taking any medication. Learn how to prepare for a blood test to get the most accurate results.

Vitamin B6 Lab Test Results

Your B6 levels should be above 5.1 µg/L; results between 3.4 and 5.1 µg/L are considered marginal, and below 3.4 µg/L is deficient. If your levels are lower than desired, you may need to incorporate more B6 in your diet with foods such as:

  • Avocado
  • Banana
  • Legumes
  • Meat
  • Nuts
  • Poultry
  • Whole grains

If you need dietary or health recommendations, count on Personalabs to help. We offer telehealth appointments with our board-certified physicians.

Where Can I Get a Vitamin B6 Blood Test Near Me?

We give you plenty of options for taking care of your health, with more than 400 tests in our online store and 4,000-plus labs across the country to complete your testing. Getting a vitamin and nutrition test couldn’t be easier. We deliver the power of healthcare and put it in your hands.

Here’s how the process works:

Step 1: Buy your test online and download the lab order. (A doctor’s approval may not be needed to make the purchase, depending on the state where you live.)

Step 2: Use our lab locator tool to find a facility for your blood work.

Step 3: Bring the test order with you when you get your blood drawn.

Step 4: Review your results in your secure Personalabs portal within 2 to 10 business days after taking your test. (If needed, contact us to reach out to the lab and get your results within a specific turnaround time.)

Browse our full range of tests today.

Additional information


LabCorp, Quest

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Order Your Test

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Generate & Print Out Lab Order

Our physician network will approve your order within 2-4hrs.



Visit the Lab

The test price decides which lab you will visit: Quest or Labcorp. Find a location in your area.



Get Your Results

Results can be provided in as little as 24-48 hrs. For more complex tests, please contact us for turn around times.


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