Folate Test: Measuring Folic Acid in the Blood
Folate, also called vitamin B9, is important for red blood cell production and cell division. A folate test measures the amount of folate in the blood, and low levels can cause a type of anemia. Adequate folate is especially important before and during pregnancy. Low intake, alcohol use, pregnancy, and some medications can reduce folate levels. Because folate and vitamin B12 deficiencies can cause similar symptoms and blood findings, the two are often tested together to tell them apart.
Key Takeaways
- Folate, or vitamin B9, is important for red blood cell production and cell division.
- A folate test measures the amount of folate in the blood.
- Low folate can cause a type of anemia and is especially important before and during pregnancy.
- Low intake, alcohol use, pregnancy, and some medications can reduce folate levels.
- Folate is often tested together with vitamin B12 because symptoms overlap.
Frequently Asked Questions
Do I need to fast for a folate test?
Fasting is usually not required.
Who should have folate tested?
People with anemia or symptoms of deficiency, and sometimes those with malabsorption or heavy alcohol use. Pregnancy care often includes folate guidance.
Can I order a folate test directly?
Yes, folate testing is available through direct-access labs.
Does folate deficiency cause symptoms?
It can cause fatigue and a type of anemia. Because B12 deficiency can look similar, testing both is common.
Sources
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