Ordering the Folic Acid & B12 Blood Test | Europe
Folic acid and vitamin B12 are important for making red blood cells and keeping nerves working well. Low levels can lead to symptoms like tiredness, memory problems, and numbness in the hands or feet. Interestingly, a shortage of these vitamins can also cause mouth ulcers and changes in mood, which are sometimes missed or mistaken for other issues.
Ordering this test helps you check if your body has enough folate and B12, which can help explain symptoms and guide next steps. Some specific benefits of ordering include:
- Detecting early signs of anemia before symptoms get worse
- Finding out if low B12 or folate is causing memory or concentration problems
- Checking for vitamin shortages that may lead to nerve tingling or numbness
- Identifying reasons for ongoing fatigue or weakness
- Supporting your doctor in choosing the right treatment or supplements
Who Should Consider Vitamin B12 and Folate Lab Testing
Someone who has been feeling unusually tired, forgetful, or has noticed tingling in their hands or feet may benefit from this test. For example, a person who has been eating less due to stomach problems and starts to feel weak and dizzy could use this test to find out if low folate or B12 is the cause.
Ordering may also be helpful in these situations:
- Someone with a family history of anemia or vitamin shortages
- People who follow a vegan or vegetarian diet for a long time
- Anyone with ongoing digestive issues like celiac or Crohn’s disease
- Older adults who notice changes in memory or balance
- People who have had weight loss surgery, as this can affect vitamin absorption
Testing for these vitamins can help explain symptoms like tiredness, numbness, or trouble thinking clearly, and can show if you need to make changes to your diet or take supplements. Waiting to order may mean symptoms get worse or last longer, making it harder to recover quickly.
Preparing for Your Folate and B12 Lab Panel
Fasting is not needed for this test, but always check the test kit instructions for any special steps. Make sure to follow whatever guidance your doctor or healthcare practitioner gives you, as this helps ensure your sample is collected the right way.
Labs Included When Ordering Your Folic Acid & B12 Blood Test
| Test Name | Reference Range | What This Test Measures | Low and High Levels of Folic Acid & B12 Blood Test |
|---|---|---|---|
| Folic Acid | >5.4 | Folic acid is a type of B vitamin that helps your body make new cells, especially red blood cells. It is also important for brain function and mood. |
High levels mean you may be getting too much from supplements or have a condition affecting absorption.
Low levels mean your body may not be making enough red blood cells, which can cause tiredness, mouth sores, or trouble thinking. |
| Vitamin B12 | 200–900 | Vitamin B12 is needed for making red blood cells and keeping nerves healthy. It also helps with memory, balance, and energy. |
High levels mean you may be taking too many supplements or have a liver or blood condition.
Low levels mean you could have anemia, nerve problems, or trouble with memory and balance. |
Reference ranges may change slightly over time as labs update their standards.
Folic Acid & B12 Blood Test FAQ
Is there Folic Acid & B12 Blood Test testing near me?
This is a test kit that you can use locally, and you can check the draw location link at the top of the page for nearby collection sites. If you have symptoms like ongoing tiredness or numbness, having a convenient place to get your blood drawn makes it easier to get answers quickly.
How do I interpret the test results?
While your treating physician should review your results, you can also use our one-on-one test results review service with our clinical team for clear guidance.
What is the cost of the test?
The price you see includes standard shipping to you and back to the lab, but local draw fees may apply. Ordering this test can help you find out if low folate or B12 is causing your symptoms, so you can start feeling better sooner.
How often should I retest?
Retesting is usually recommended every 3 to 6 months if you have had low levels before or are making changes to your diet or supplements. Regular testing helps track your progress and makes sure your vitamin levels stay in the right range.
How accurate is the test?
This test uses chemiluminescent immunoassay for B12 and microbiological assay for folate, with a specificity of 98% and sensitivity of 97%. TrueHealthLabs.com partners with CLIA-certified and CAP-certified laboratories to uphold rigorous testing standards for dependable results.
Important Notes
READ: These tests are available for European countries only.
Medical Review Board
Reviewed by Jeff Donohue M.D. from Body Logic and Brady Hurst DC, CCCN. Written by True Health Lab’s team of editorial health contributors.
Disclaimer: This information is for educational purposes only and not intended as medical advice. Consult your healthcare provider for personalized guidance.
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