Folate vs Folic Acid: Which Is Better Before Pregnancy?
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If you’re preparing for pregnancy whether you’re trying naturally or planning IVF you’ve almost certainly been told to take folic acid. It’s one of the most common recommendations in preconception care.
But here’s something many women don’t realise: not all forms of folate are the same. There’s an important difference between folic acid (the synthetic form found in many supplements and fortified foods) and active folate (also called 5-MTHF or L-methylfolate) the form your body can actually use right away.
Understanding this difference can make a real impact on how well your body supports a healthy pregnancy from the very beginning. At SoFitt.™ Nutrition, we believe in giving women clear, evidence-based information so they can make confident choices for their fertility journey.
What’s the Difference Between Folate and Folic Acid?
Folate is the natural form of vitamin B9 found in foods like leafy greens, legumes, avocados, and liver. Your body knows exactly what to do with it.
Folic acid is a synthetic version created in a lab. It’s stable and cheap, which is why it’s added to supplements and fortified foods. However, before your body can use folic acid, it must go through several conversion steps in the liver and other tissues to become the active form: 5-methyltetrahydrofolate (5-MTHF).
This conversion process relies on enzymes most importantly one produced by the MTHFR gene. Some women have variations in this gene that make the conversion less efficient. For these women, taking standard folic acid may not raise their folate levels as effectively as taking the active form directly.

Why This Matters Before Pregnancy
The weeks and months before conception are critical. Your body is preparing eggs, building up nutrient stores, and creating the best possible environment for implantation and early embryonic development.
Folate plays a vital role in:
- DNA synthesis and repair
- Proper neural tube formation (which happens in the very first weeks after conception often before you even know you’re pregnant)
- Methylation processes that influence gene expression and homocysteine levels
When folic acid isn’t converted efficiently, some of it can remain in the bloodstream as unmetabolised folic acid. While the long-term effects are still being studied, many experts now prefer the active form because it bypasses the conversion step entirely and is immediately available to your cells.
A 2020 review comparing folic acid with 5-MTHF concluded that the active form may offer advantages in certain situations, particularly for women with MTHFR variations or those who don’t convert folic acid well.
More recently, a 2025 systematic review and meta-analysis found that supplementation with the active form of folate was associated with higher plasma and red blood cell folate levels, increased subsequent pregnancy rates, and fewer adverse pregnancy outcomes in women with a history of pregnancy complications.
At SoFitt.™ Nutrition, we’ve seen how choosing the right form of folate can make a meaningful difference for the women we support on their preconception and pregnancy journeys.
Is Active Folate Better for Everyone?
The short answer is: it depends on your individual situation, but it’s often the smarter choice for preconception support.
Many women feel better and absorb folate more effectively when they take 5-MTHF instead of (or in addition to) standard folic acid. This is especially relevant if you:
- Have a known MTHFR gene variation
- Have a history of miscarriage or pregnancy complications
- Experience side effects from regular folic acid supplements
- Want the most bioavailable form during the important preconception window
That said, folic acid has decades of strong evidence behind it for preventing neural tube defects in the general population. The key message isn’t that folic acid is “bad” it’s that active folate may be more effective and better tolerated for many women preparing for pregnancy.
How Much Do You Need and When Should You Start?
Health authorities generally recommend 400–800 mcg of folate daily in the preconception period and throughout the first trimester. Many experts now suggest starting at least three months before trying to conceive so your body has time to build optimal stores.
Because the active form doesn’t need to be converted, you can often achieve good levels with a lower or equivalent dose compared to standard folic acid.
Practical Ways to Support Your Folate Levels
Here are simple, effective steps many women find helpful:
- Eat folate-rich foods daily (spinach, broccoli, asparagus, lentils, avocado, eggs)
- Choose a high-quality preconception or prenatal supplement that contains active folate (5-MTHF) rather than (or in addition to) folic acid like our Advanced Fertility Support supplement.
- Consider your overall methylation support nutrients like B12, B6, and choline also play important roles
- Work with a healthcare practitioner if you have a history of pregnancy loss or known genetic variations
This is exactly why SoFitt.™ Nutrition formulates our Advanced Fertility Support and Advanced Pregnancy Support shakes with Active Folate (MTHF) so you’re getting the bioactive form your body can use immediately, alongside other key nutrients for preconception and pregnancy in one convenient daily scoop.
A Final Word of Encouragement
Preparing for pregnancy can feel overwhelming with all the information available. The good news is that small, informed choices like understanding the difference between folic acid and active folate can give you more confidence and better support your body.
You don’t have to be perfect. You just have to be consistent and kind to yourself while you build the foundation for the next chapter.
If you’d like personalised guidance on your preconception nutrition, the team at SoFitt.™ Nutrition is here through virtual or in-person consultations. And if you’re looking for a simple way to get active folate and other key nutrients in one delicious daily shake, you can explore our full range on the website.
Wishing you a healthy and supported journey ahead.
With warmth,
Christine
Registered Dietitian & Founder, SoFitt.™ Nutrition
References
- Ferrazzi E, et al. Folic acid versus 5-methyl tetrahydrofolate supplementation in pregnancy: A review. Eur J Obstet Gynecol Reprod Biol. 2020. https://www.sciencedirect.com/science/article/abs/pii/S0301211520303754
- Xie M, et al. The effectiveness and safety of the active form of folate on biochemical parameters in women of childbearing age: A systematic review and meta-analysis. Medicine (Baltimore). 2025. https://journals.lww.com/md-journal/fulltext/2025/12120/the_effectiveness_and_safety_of_the_active_form_of.140.aspx
- Carboni L. Active Folate Versus Folic Acid: The Role of 5-MTHF (5-methyl tetrahydrofolate) in Human Health. Integr Med (Encinitas). 2022. https://pmc.ncbi.nlm.nih.gov/articles/PMC9380836/
