Folate (Vitamin B9)— Normal Range & What Your Result Means

Normal Folate (Vitamin B9) range (Folate, ng/mL)

  • Adults3–17 ng/mL

Ranges are typical adult values and vary between labs. Use the range on your own report.

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What is Folate (Vitamin B9) (Folate)?

Folate (Vitamin B9) is measured as part of a vitamins & nutrition panel. Your folate is in a healthy range.

What does a high Folate (Vitamin B9) mean?

Elevated folate is generally harmless and usually reflects supplementation.

What does a low Folate (Vitamin B9) mean?

Your folate (vitamin B9) is low. Deficiency causes fatigue and a type of anemia, and is important to correct — especially in pregnancy, where folate protects the baby's development.

If markedly low: Your folate is critically low, which can cause megaloblastic anemia. Supplementation is usually needed, and B12 should be checked too.

Understand your whole report, not just one number

A single value rarely tells the full story — Folate (Vitamin B9) is best read alongside the rest of your panel. Paste your values or upload your report and get a plain-English explanation of every marker, with the important results flagged.

Folate (Vitamin B9): frequently asked questions

What is a normal Folate (Vitamin B9) level?

A normal Folate (Vitamin B9) (Folate) level is 3–17 ng/mL for adults. Reference ranges vary slightly between laboratories, so always compare against the range printed on your own report.

What does a high Folate (Vitamin B9) mean?

Elevated folate is generally harmless and usually reflects supplementation.

What does a low Folate (Vitamin B9) mean?

Your folate (vitamin B9) is low. Deficiency causes fatigue and a type of anemia, and is important to correct — especially in pregnancy, where folate protects the baby's development.