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Folate RBC test for fatigue, anemia, and nutritional deficiency diagnosis

Blood Test for Fatigue and Nutritional Deficiency

Folate, RBC

Google
3,138 reviews
  • Pinpoint the cause of your fatigue
  • Reveal hidden nutritional deficiencies
  • Clarify your overall health status
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 unexplained fatigue, weakness, or signs of anemia like paleness or shortness of breath. It measures red blood cell folate levels to identify nutritional deficiencies that may be affecting your energy, blood cell production, and overall health. Many people use this test when they suspect vitamin deficiency is causing their symptoms, especially if they have digestive issues, are pregnant, or have dietary restrictions.

How should I prepare for this test?

No biotin: 72 hours

You should not take any vitamins or supplements containing folic acid for three to five days before your test, though you should consult your physician before discontinuing any supplements. If you're taking high-dose biotin (vitamin B7 or B8), stop taking it at least 72 hours before your blood draw, as it can interfere with test results. No fasting is required for this test.

What's included in this test?

Folate, Rbc

This test measures Folate RBC (Red Blood Cell Folate), which provides a more accurate picture of your long-term folate status compared to serum folate. RBC folate levels remain fairly constant and reflect your body's stored folate over the past 2-3 months, making it especially useful for diagnosing true nutritional deficiencies. This measurement is particularly important for pregnant women, those with absorption issues, and anyone experiencing symptoms of anemia or chronic fatigue.

What happens after I get my results?
You'll receive detailed doctor notes in simple language explaining what your folate levels mean for your energy, blood health, and overall wellness. These notes include personalized recommendations like dietary changes, supplement suggestions, and lifestyle adjustments to improve your nutritional status. You'll also get the standard lab report and can track your folate levels over time using our trends feature to see how your diet or supplementation is working.
When will I get my results?
Your results are typically available within 4 business days after your sample is collected at the lab. If any confirmation testing is needed, the turnaround time may be slightly extended, but you'll be notified if this is the case. Once ready, you'll receive your results with easy-to-understand doctor notes and the complete lab report.
Who should consider getting this test?
This test is important for pregnant women or those planning to conceive, as folate is critical for fetal development. It's also recommended for people with digestive disorders like celiac disease or Crohn's disease that affect nutrient absorption, those with chronic alcoholism, anyone taking certain medications that interfere with folate, and individuals with unexplained anemia or persistent fatigue despite adequate rest.
What symptoms indicate I may need this test?
Common symptoms of folate deficiency include persistent tiredness and weakness, pale or yellowish skin, shortness of breath, and lightheadedness. You might also experience mouth sores, tongue swelling, irritability, or difficulty concentrating. Pregnant women with low folate may have complications, so testing is especially important during pregnancy or when planning to conceive.
How can I naturally increase my folate levels?
Eat plenty of folate-rich foods like dark leafy greens (spinach, kale), legumes (lentils, chickpeas, black beans), asparagus, and broccoli. Include fortified cereals and whole grains, as many are enriched with folic acid. Citrus fruits, avocados, and eggs also provide good amounts of folate. Limit alcohol consumption, as it interferes with folate absorption and metabolism, and ensure you're cooking vegetables lightly to preserve their folate content.
What is folate and why does it matter?
Folate, also known as vitamin B9 or folic acid in supplement form, is essential for producing healthy red blood cells and DNA synthesis. Your body needs it for cell division and growth, making it especially critical during pregnancy for preventing neural tube defects in developing babies. Low folate can lead to megaloblastic anemia, where your body produces abnormally large and dysfunctional red blood cells that can't carry oxygen efficiently.
What does low folate mean?
Low RBC folate indicates a long-term deficiency that can result from poor dietary intake, malabsorption issues, certain medications, or excessive alcohol consumption. This deficiency can cause anemia, leading to fatigue, weakness, and difficulty concentrating. In pregnant women, low folate significantly increases the risk of neural tube defects and other birth complications, which is why adequate folate is crucial before and during pregnancy.
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
Folate, RBC 285 ng/mL
Demo results
Low Optimal 300 - 1500 High
285 ng/mL

What this means

Your red blood cell folate levels are slightly below the optimal range, which may indicate a long-term folate deficiency. While not critically low, this could contribute to fatigue, weakness, and reduced energy levels over time. Low folate can also affect red blood cell production and overall cellular 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

Blood Test for Fatigue and Nutritional Deficiency

Google
3,138 reviews
  • Pinpoint the cause of your fatigue
  • Reveal hidden nutritional deficiencies
  • Clarify your overall health status

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.