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Vitamin B6 test for people experiencing fatigue, low energy, and nutritional deficiencies

Vitamin B6 Blood Test for Fatigue and Low Energy

Vitamin B6

Google
3,138 reviews
  • Pinpoint the cause of your fatigue
  • Reveal hidden vitamin B6 deficiencies
  • Enhance your energy levels effectively
First results as soon as overnight*

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

What's this test for?

This test is ideal if you're experiencing persistent fatigue, muscle weakness, numbness or tingling in your hands and feet, or mood changes like irritability and depression. It helps identify whether low vitamin B6 levels are contributing to your symptoms, which is especially important if you have dietary restrictions, take certain medications, or have conditions that affect nutrient absorption. Many people use this test when they suspect their tiredness isn't just from lack of sleep but from a nutritional deficiency.

How should I prepare for this test?

You'll need to fast overnight before this test, which means no food or drinks except water for 8-12 hours before your blood draw. This fasting requirement helps ensure accurate measurement of your vitamin B6 levels. Try to schedule your appointment in the morning so fasting is easier, and you can eat normally afterward.

What's included in this test?

Vitamin B6

This test measures your plasma vitamin B6 levels to determine if you have adequate amounts of this essential nutrient. Vitamin B6 is crucial for converting food into energy, supporting brain function and mood regulation, maintaining healthy nerve function, and helping your body produce red blood cells and immune system proteins. Low levels can lead to fatigue, nerve problems, and weakened immunity, while excessively high levels from over-supplementation can also cause health issues.

What happens after I get my results?
You'll receive detailed doctor notes in simple language explaining what your vitamin B6 levels mean for your energy, nerve function, and overall health. These notes include personalized recommendations like dietary changes to include more B6-rich foods, supplement guidance, or whether you should investigate absorption issues further. You'll also get the standard lab report and can track your vitamin B6 levels over time using our trends feature to see how dietary improvements or supplementation are working.
When will I get my results?
You can expect to receive your results within 5 business days after your blood sample is collected at the lab. You'll be notified by email as soon as your results are ready to view in your secure online account, along with easy-to-understand doctor notes explaining what your vitamin B6 levels mean.
Who should consider getting this test?
This test is valuable for people experiencing unexplained fatigue, weakness, or nerve-related symptoms like numbness and tingling. It's also important for those on restrictive diets, vegetarians or vegans, people taking medications that may deplete B6, individuals with digestive disorders affecting nutrient absorption, and anyone concerned about their nutritional status or considering vitamin supplementation.
What symptoms indicate I may need this test?
Common signs of vitamin B6 deficiency include persistent tiredness and low energy, muscle weakness, numbness or tingling in hands and feet, mood changes like irritability or depression, and a weakened immune system with frequent infections. Some people also experience skin problems like rashes or cracked lips, confusion or trouble concentrating, and anemia symptoms.
How can I naturally support healthy vitamin B6 levels?
You can boost your vitamin B6 intake by eating more poultry like chicken and turkey, fish such as salmon and tuna, starchy vegetables like potatoes and sweet potatoes, and chickpeas and bananas. Whole grains, fortified cereals, nuts, and leafy greens are also good sources. Avoid excessive alcohol consumption as it depletes B6, and be mindful that processing and cooking can reduce B6 content in foods, so include some raw or lightly cooked options.
What is vitamin B6 and why does it matter?
Vitamin B6, also known as pyridoxine, is a water-soluble vitamin your body needs for over 100 different enzyme reactions, mainly related to protein metabolism. It plays a critical role in converting the food you eat into usable energy, creating neurotransmitters that regulate mood and brain function, forming hemoglobin that carries oxygen in your blood, and supporting immune system health. Because your body doesn't store it long-term, you need a regular dietary supply.
What does low vitamin B6 mean?
Low vitamin B6 means your body doesn't have enough of this essential nutrient to support optimal energy production, nerve function, and brain health. This can result from poor dietary intake, malabsorption issues, certain medications, excessive alcohol use, or increased needs during pregnancy. Low levels may cause fatigue, mood changes, weakened immunity, and in severe cases, nerve damage or anemia that requires medical attention.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at [email protected], and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at [email protected]. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email [email protected].
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email [email protected].

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Instant orders, results often overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
Vitamin B6 4.2 ng/mL
Demo results
Low Optimal 5.0 - 50.0 High
4.2 ng/mL

What this means

Your vitamin B6 levels are below the optimal range, which may explain symptoms like persistent fatigue, low energy, or mood changes. While not severely deficient, this level suggests your body may not have enough B6 to support optimal energy production, nerve function, and immune health.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Vitamin B6 Blood Test for Fatigue and Low Energy

Google
3,138 reviews
  • Pinpoint the cause of your fatigue
  • Reveal hidden vitamin B6 deficiencies
  • Enhance your energy levels effectively

1,000,000+ blood tests later, here's what our customers say

Google reviews 3138 reviews Next
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.