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Vitamin B9 Testing (Folate)

The Vitamin B9 test is also known as a Folate or Folic Acid test.

All you need to know about testing Vitamin B9 levels with a laboratory test

  • What is the Vitamin B9 test for?
  • How to test Vitamin B9?
  • What if Vitamin B9 results are high?
  • What if Vitamin B9 results are low?
  • Who should take the Vitamins & Minerals Complete Blood test?

Vitamin B9 Testing UK Statistics 2026

Icon For Vitamin B9
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9.7% of people tested have Vitamin B9 levels which are too low.

14.2

Low
< 7.0

Normal
7.0 +

The average Vitamin B9 result is 14.2 nmol/L
Note what is normal for you may differ for your age and sex.

Are you in the 90.3% with normal results?
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What Is The Vitamin B9 Test For?

Vitamin B9 (also known as Folate) is an important B vitamin. It helps utilise amino acids which are the building blocks of proteins, in order to form blood cells, tissue and aid cellular repair.

Vitamin B9 must be consumed regularly in the diet - typically from green vegetables and fruits. All pregnant women need increased amounts of folate for proper fetal development even if the levels are normal.

How To Test Vitamin B9

By buying a laboratory test kit with professional nurse or clinic collection, you can accurately measure Vitamin B9 for total reassurance.

Professional analysis in an accredited laboratory ensures rapid result delivery.

The Vitall Vitamins & Minerals Complete nurse or clinic test kit includes a Vitamin B9 test and is available for just £99.00.

Tests which include a Vitamin B9 test:

Health is in your hands
Health is in your hands
Take Control Of Your Health | Home Blood Testing Services

Vitamins & Minerals Complete Test Kit

Vitamins & Minerals Complete test kit
Vitamins & Minerals Complete Home Test Kit UK

Vitamins & Minerals Complete Test Kit

Fully identify & optimise nutritional deficiencies

£99.00

View Full Details ›
Health is in your hands
Health is in your hands
Take Control Of Your Health | Home Blood Testing Services

Vitamin & Minerals Test Kit

Vitamin & Minerals test kit
Vitamin & Minerals Home Test Kit UK

Vitamin & Minerals Test Kit

Identify crucial vitamin & mineral deficiencies

£69.00

View Full Details ›

What if Vitamin B9 Results Are High?

High folate levels are usually not a concern, especially when they occur naturally through diet. High intake of folic acid from supplements is generally not recommended, as excessive amounts can be harmful.

When supplements are being used in anticipation of pregnancy, high folate levels are not usually treated as a problem. When supplements are being used for reasons unrelated to potential pregnancy, a high level can suggest that dietary intake is already sufficient.

What if Vitamin B9 Results Are Low?

Vitamin B9 is not stored by the body, so deficiency can develop relatively quickly if dietary intake is low. Factors often linked to lower Vitamin B9 levels include a poor overall diet, higher alcohol intake, pregnancy, and certain inherited genetic conditions or conditions such as Crohn's disease.

  • poor overall diet
  • higher alcohol intake
  • pregnancy
  • certain inherited genetic conditions, or conditions such as Crohn's disease

Vitamin B9 levels are often raised through dietary sources rich in Vitamin B9, including animal livers, dried nuts (such as hazelnuts, walnuts, almonds, chestnut), green leafy vegetables (such as spinach, salads, broccoli), eggs, and seafood.

  • animal livers
  • dried nuts such as hazelnuts, walnuts, almonds, chestnut
  • green leafy vegetables such as spinach, salads, broccoli
  • eggs
  • seafood

Many breakfast cereals are fortified with B vitamins, and Vitamin B9 supplements are also available; supplementation for 3–4 months is often enough for levels to return to normal. Understanding the cause is important and is commonly explored further. When low Vitamin B9 is due to dietary insufficiency, oral supplementation is sometimes sufficient, but when linked to gastrointestinal problems such as inflammatory bowel disease or coeliac disease, supplementation may be less effective.

Who Should Take This Test?

Measure your Vitamin B9 levels and fully identify & optimise nutritional deficiencies with a Vitamins & Minerals Complete nurse or clinic finger-prick bloodtest kit

You get the convenient testing with the reassurance of professional clinical analysis. Your results are delivered quickly & securely online.

This Vitamins & Minerals Complete Test is advised if you:

  • want the convenience of home testing without waiting for a GP appointment;
  • need a high quality, clinically accredited test done in a professional clinical laboratory.

Other Biomarkers Often Tested With Vitamin B9

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Urine, swab or bood test. This test is available to buy online Vitamin B12 (Active)
Urine, swab or bood test. This test is available to buy online Vitamin B9
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