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Vitamins

Folate (Vitamin B9) Test

Folate measures vitamin B9, a nutrient that may support oxygen-carrying red blood cell production and tissue repair. For active individuals, maintaining adequate folate levels could be important for endurance and recovery optimisation.

Doctor's Assessment Included

Reference Ranges

See the value that applies to you:

Choose male or female — this range differs by sex.

Enter your age — this range changes with age.

This range also depends on context such as cycle phase or sample material; the highlighted rows apply to your group.

Male Your group
nmol/l
Low 10 Normal 42 High
Female Your group
nmol/l
Low 10 Normal 42 High

Reference ranges may vary between laboratories. When you order a test, a BIG-registered doctor assesses your personal results in context. For treatment decisions, discuss your results with your GP.

Check your own value

Folate (Folic Acid): what this test measures

This test measures the level of folate (vitamin B9) in your blood. Folate is essential for producing and maintaining new cells, particularly during periods of rapid cell division such as pregnancy and growth phases.

Folate (Folic Acid): why this value matters

Active individuals may require adequate folate for red blood cell production, which supports oxygen transport to working muscles. Low folate could be associated with reduced endurance and slower recovery. Consider monitoring this marker alongside your training programme.

Folate (Folic Acid): when is testing worthwhile?

Testing may be considered if you are planning a pregnancy, experiencing symptoms of anaemia, following a restricted diet, or taking medications that may affect folate absorption. Your healthcare provider can recommend when testing is appropriate.

Folate (Folic Acid): symptoms of a high or low value

Low Levels

Some people with low folate levels may experience fatigue, weakness, mouth sores, changes in skin or hair pigmentation, irritability, and shortness of breath. Persistent symptoms should be discussed with a healthcare provider.

High Levels

Very high folate levels are uncommon from diet alone and may sometimes mask a vitamin B12 deficiency. Excess supplementation should be discussed with your healthcare provider to ensure it is appropriate for your situation.

Folate (Folic Acid): what to do about an abnormal value

Male

If Low

Low folate may cause anemia and fatigue. Consider folate supplementation (400-800 mcg daily) and increase leafy green vegetable intake.

If High

High folate may mask B12 deficiency. Ensure adequate B12 levels and reduce supplementation if excessive.

Female

If Low

Low folate may cause anemia and is critical during pregnancy. Consider folate supplementation (400-800 mcg daily) and increase leafy green vegetables.

If High

High folate may mask B12 deficiency. Ensure adequate B12 levels and reduce supplementation if excessive.

Folate (Folic Acid): lifestyle and this value

Leafy green vegetables, legumes, citrus fruits, and fortified cereals are considered good dietary sources of folate. Cooking may reduce folate content, so including raw vegetables could be beneficial. Discuss supplementation with your healthcare provider if needed.

Folate (Folic Acid): frequently asked questions

What is the difference between folate and folic acid?

Folate is the natural form of vitamin B9 found in foods, while folic acid is the synthetic form used in supplements and fortified foods. Both are converted to the active form in your body, though some individuals may process them differently.

Why is folate important during pregnancy?

Folate is considered essential for proper neural tube development in the early stages of pregnancy. Healthcare providers often recommend supplementation before and during early pregnancy to help reduce the risk of neural tube defects.

Can I get enough folate from my diet alone?

Many people can obtain adequate folate from a varied diet rich in vegetables, legumes, and fruits. However, certain individuals, particularly those planning pregnancy, may benefit from supplementation. Discuss your needs with your healthcare provider.

Test Products

This marker is included in the following test panels.

Health Checkups

InsideTracker

A 35-biomarker performance and longevity panel inspired by InsideTracker Ultimate — covering heart, hormones, metabolism, inflammation, recovery and iron status.

SHBG (Sex Hormone Binding Globulin) TSH (Thyroid Stimulating Hormone) ALT (Alanine Aminotransferase) LDL Cholesterol GGT (Gamma-Glutamyl Transferase) Cortisol DHEA-S Estradiol (E2) Free Testosterone Total Testosterone Folate (Folic Acid) Vitamin B12 Calcium Ferritin Iron (Serum) Magnesium Potassium Progesterone Sodium Transferrin CRP (C-Reactive Protein) Glucose (Fasting) HbA1c (Glycated Hemoglobin) ApoB (Apolipoprotein B) HDL Cholesterol Total Cholesterol Albumin AST (Aspartate Aminotransferase) Vitamin D (25-OH) Insulin (Fasting) Leukocyte Differential Creatine Kinase (CK) Transferrin Saturation Triglycerides Basic Blood Count
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Folate (Folic Acid)

€25,-