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Vitamin B2 test for people experiencing constant fatigue and unexplained headaches

Vitamin B2 Test for Constant Tiredness and Headaches

Vitamin B2 (Riboflavin)

Google
3,138 reviews
  • Reveal why you're feeling constantly tired
  • Pinpoint the cause of frequent headaches
  • Clarify your skin health issues
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 constant tiredness, frequent headaches, or skin issues like cracks at the corners of your mouth. It measures your Vitamin B2 levels, which play a crucial role in converting the food you eat into energy your body can use. Many people use this test when they suspect their fatigue or other symptoms might be related to a vitamin deficiency but want concrete answers.

How should I prepare for this test?

You'll need to fast overnight before your blood draw, which means no food or drinks except water for 8-12 hours. It's also best to avoid taking any vitamin supplements for 24 hours before your test, as they can affect your results. This helps ensure your results accurately reflect your body's natural Vitamin B2 status.

What's included in this test?

Vitamin B2 (Riboflavin)

This test measures Vitamin B2 (Riboflavin) levels in your blood plasma. Riboflavin is essential for energy production, helping your body convert carbohydrates, fats, and proteins into usable energy. It also supports healthy skin, eyes, and nervous system function, which is why deficiency can cause symptoms like persistent fatigue, headaches, and skin problems around the mouth.

What happens after I get my results?
You'll receive detailed doctor notes in simple language explaining what your Vitamin B2 levels mean for your energy, skin health, and overall wellness. These notes include personalized recommendations like dietary changes to increase riboflavin intake, supplement suggestions if needed, or lifestyle adjustments to improve absorption. You'll also get the standard lab report and can track your vitamin levels over time using our trends feature to see how your dietary interventions are working.
When will I get my results?
Your results will be available in approximately 5 business days after your blood sample is collected. You'll receive an email notification when your results are ready to view online, along with your easy-to-understand doctor notes and standard lab report.
Who should consider getting this test?
This test is especially useful for people experiencing unexplained fatigue, frequent headaches, or skin problems like cracked corners of the mouth. It's also important for those following restrictive diets, vegetarians, people with digestive issues that affect nutrient absorption, or anyone who suspects they may not be getting enough B vitamins from their diet.
What symptoms indicate I may need this test?
Common symptoms of low Vitamin B2 include persistent tiredness even after rest, frequent headaches, sensitivity to light, cracks or sores at the corners of your mouth, red or swollen tongue, and skin issues. Some people also experience eye problems like itching, burning, or unusual sensitivity to bright light. If you're experiencing several of these symptoms together, this test can help identify if B2 deficiency is the cause.
How can I naturally increase my Vitamin B2 levels?
Focus on eating riboflavin-rich foods like dairy products (milk, yogurt, cheese), eggs, lean meats, fish, and green leafy vegetables like spinach and broccoli. Fortified cereals and whole grains are also excellent sources. Since Vitamin B2 is light-sensitive, store these foods properly in dark containers or packaging. Avoid excessive alcohol consumption, as it can interfere with B2 absorption and increase your body's need for this vitamin.
What does low Vitamin B2 mean?
Low Vitamin B2 means your body doesn't have enough riboflavin to efficiently convert food into energy and support healthy cells. This can lead to fatigue, skin problems, mouth sores, anemia, and eye sensitivity. Deficiency can result from poor diet, certain medications, digestive disorders that affect absorption, or increased needs during pregnancy or periods of rapid growth.
How often should I retest my Vitamin B2 levels?
If your levels are low and you've made dietary changes or started supplementation, retest in 2-3 months to see if your interventions are working. Once your levels are in the optimal range, annual testing is typically sufficient unless you change your diet significantly, develop digestive issues, or symptoms return. Your healthcare provider may recommend more frequent monitoring if you have conditions affecting nutrient absorption.
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 B2 (Riboflavin) 8.2 ng/mL
Demo results
Low Optimal 10 - 50 High
8.2 ng/mL

What this means

Your Vitamin B2 levels are below the optimal range, which may explain symptoms like persistent fatigue, headaches, or skin issues. While not severely deficient, this level suggests your body isn't getting enough riboflavin to efficiently convert food into energy and maintain healthy cells.

* 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 B2 Test for Constant Tiredness and Headaches

Google
3,138 reviews
  • Reveal why you're feeling constantly tired
  • Pinpoint the cause of frequent headaches
  • Clarify your skin health issues

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.