Folic Acid – Importance for the Body

Vitamin B9 is a water‑soluble B‑group vitamin essential for cell division, blood formation, and the synthesis of genetic material. The body does not produce it on its own and does not store significant amounts, so it must be obtained regularly from food or, if necessary, from dietary supplements.

Its role is especially critical during pregnancy planning and pregnancy itself, when the body’s needs increase substantially. However, it is necessary for everyone regardless of age or gender – for children during growth periods and for adults whose cells renew daily.

Folic Acid – What It Is and What It Does

Folates are the natural forms of the vitamin found in food, while the synthetic form is used in fortified products and dietary supplements. In everyday language, the two terms are often used interchangeably, but chemically and in terms of absorption they differ somewhat.

The synthetic form is more stable and retains its potency longer during storage, which is why it is more commonly used in tablets. Natural folates, on the other hand, are sensitive to light and heat.

Is There a Difference Between These Two Terms?

In practice, both terms refer to the same substance, and the name “folic acid” is widely used on pharmacy product labels. Both variants appear in English (and other languages) and do not indicate a difference in composition or quality.

When choosing a product, it is more important to check the composition and the amount of active ingredient per dose than the spelling of the name.

Key Functions in the Body

Vitamin B9 participates in cell division, DNA synthesis, and haematopoiesis. It is especially important during periods of active cell renewal. Adequate levels are also needed for proper nervous system function and homocysteine metabolism.

Blood cells and the gastrointestinal mucosa are the fastest‑renewing tissues, so they are the first to respond to insufficient intake.

Folic Acid Deficiency – Causes and Signs

Deficiency develops gradually when the diet is low in green leafy vegetables, legumes, and whole grains. Absorption can be impaired by intestinal diseases, alcohol consumption, and certain medications.

The need also increases during periods of active cell division – pregnancy, breastfeeding, adolescence, or recovery from illness. At such times, a normal diet may no longer be enough to meet the demand.

Low folic acid levels can manifest as fatigue, weakness, pallor, poor concentration, and reduced physical endurance. Less commonly, irritability, oral mucosal sensitivity, or appetite changes may occur.

These symptoms are not specific and could point to other conditions, so if symptoms persist, it is advisable to see a doctor and have blood tests done. A diagnosis should not be made based on self‑assessment alone.

The following people should pay particular attention to their folic acid intake:

• women planning a pregnancy or already pregnant;
• people with a limited or repetitive diet;
• individuals with intestinal malabsorption issues;
• those on long‑term medication;
• people who regularly consume alcohol.

Folic Acid for Men and Women – Who Needs It Most

The nutrient is needed by both sexes – it supports cell renewal and blood formation. What differs is not its function in the body, but the situations in which the need becomes especially high.

For Men

For men, it is not tied to a specific life stage – adequate intake is simply part of a balanced diet and normal cell division. The need increases if the diet lacks fresh vegetables.

In practice, men often eat fewer green vegetables and legumes than recommended, so actual intake may fall below what is needed even without obvious complaints.

For Pregnant Women and Pregnancy Planning

Adequate intake before conception and during the first weeks of pregnancy helps reduce the risk of neural tube defects in the fetus. These developmental processes happen very early, often before pregnancy is confirmed, so it is wise to start supplementation during the planning stage.

During pregnancy, blood volume increases and fetal tissues grow rapidly, so the demand is significantly higher than usual. At the same time, it is important not to take several supplements containing folic acid simultaneously without medical supervision.

The exact regimen, dosage, and duration should be determined by a doctor or midwife, based on health status, test results, and the course of any previous pregnancies.

Folic Acid Dosages, Duration of Use, and How to Choose a Product

Pharmacies offer various strengths, and the numbers on the packaging often cause the most confusion. The difference between products usually lies not in the name but in the amount of active substance per dose.

Search queries sometimes include “folic acid 1000” – this simply means 1000 mcg, which is equivalent to 1 mg. Higher doses should not be taken preventively on your own.

Higher strengths are usually prescribed for specific medical reasons and for a limited time. A higher number on the pack does not mean a better effect – it indicates a different intended use.

Duration depends on the goal and the body’s needs: sometimes dietary adjustments are enough, while other times a longer supplementation period is required. For pregnancy planning, intake typically starts several months before conception.

Dietary Sources and Supplements

Natural sources include green leafy vegetables, broccoli, legumes, avocado, citrus fruits, and whole grains. Folates are heat‑sensitive, so some are lost during cooking.

To preserve more nutrients, it is best to steam vegetables or eat them raw. A varied diet provides enough for most people without extra supplements.

If the diet does not supply sufficient amounts, additional intake can help. Some products use the active folate form – 5‑MTHF (e.g., Quatrefolic) – which is ready for the body to use without further conversion.

This form may be relevant for people whose conversion of synthetic folic acid is less efficient. The choice between the two forms is always individual.

What Criteria to Use When Choosing a Supplement

• amount of active substance per dose;
• form – synthetic or active 5‑MTHF;
• additional ingredients, e.g., vitamin B12;
• transparent composition and clear labelling;
• convenience for daily use;
• doctor’s recommendation for your specific situation.

There is no universally “best” product – the most suitable option depends on age, diet, and health status.

Conclusion

Vitamin B9 is an important nutrient required for cell division, blood formation, and normal body function. Most folates can be obtained from a varied diet, but in certain situations extra intake is necessary.

When choosing a product, it is essential to consider dosage, form, and individual needs, and high doses should never be taken without medical advice. A balanced diet, timely testing, and following professional recommendations are the safest ways to maintain optimal levels in the long term.