If you’re pregnant — or planning to be — you’ve almost certainly been told to take folic acid. It’s one of the most widely recommended supplements in the world, and for very good reason. But here’s something that doesn’t get talked about nearly enough: not all forms of this essential B vitamin are created equal.
The difference between folic acid and folate might sound like a technicality. It isn’t. Understanding it could make a real difference to your health and your baby’s development. Let’s break it down.
What Is Folate — and Why Does Your Body Need It During Pregnancy?
Folate is the natural form of Vitamin B9. It’s found in whole foods like leafy green vegetables, legumes, eggs, and citrus fruits. Your body uses folate for a remarkable range of functions — but during pregnancy, its role becomes absolutely critical.
Folate is essential for:
- Neural tube development — the formation of your baby’s brain and spinal cord, which happens in the very early weeks of pregnancy
- DNA synthesis and cell division — supporting the rapid growth that happens from the moment of conception
- Red blood cell production — helping to prevent anaemia in both mother and baby
- Reducing the risk of birth defects — including spina bifida and anencephaly
Getting enough folate — especially in the first trimester — is one of the most important nutritional steps you can take for your baby’s health.
So What Is Folic Acid?
Folic acid is the synthetic form of Vitamin B9. It’s the version found in most standard pregnancy supplements and fortified foods. For decades, folic acid has been the go-to recommendation from health authorities worldwide, and the research supporting its role in preventing neural tube defects is genuinely strong.
But here’s where it gets interesting.
The Key Difference: How Your Body Processes Each Form
Your body cannot use folic acid directly. Before it can work, folic acid must be converted into its active form — a compound called 5-methyltetrahydrofolate (5-MTHF) — through a series of enzymatic steps.
For many people, this conversion process works just fine. But for a significant portion of the population — estimated at up to 40-60% — a common genetic variation called the MTHFR gene mutation impairs this conversion. People with this variation may struggle to fully process folic acid, meaning some of the supplement they’re taking may go to waste at precisely the time they need it most.
Unmetabolised folic acid can also build up in the bloodstream, which some researchers believe may have unintended effects — though the science here is still evolving.
Why Methylfolate (Active Folate) May Be the Better Choice
Methylfolate — also known as 5-MTHF or active folate — bypasses the conversion problem entirely. It’s already in the form your body can use immediately, which means:
- Better absorption for everyone, especially those with MTHFR variants
- More efficient delivery to the developing baby
- No conversion step required — your body gets the full benefit straight away
For women who have experienced recurrent miscarriage, have a family history of neural tube defects, or simply want to optimise their nutritional support during pregnancy, choosing a supplement containing active methylfolate rather than synthetic folic acid is a powerful step forward.
What This Means for Your Pregnancy
This doesn’t mean folic acid is harmful — it means that for many women, there’s a better option available. If you’re planning a pregnancy or are already in your first trimester, it’s worth looking at the form of B9 in your supplement.
Check the label. Look for methylfolate, 5-MTHF, or active folate rather than simply “folic acid.” That small detail can have a meaningful impact on how well your body — and your growing baby — actually benefits from every capsule.
And remember: folate-rich foods matter too. Dark leafy greens, lentils, chickpeas, avocado, and broccoli are all excellent natural sources. A high-quality supplement works best as part of a nutrient-dense diet, not as a replacement for one.
The Bottom Line
When it comes to supporting a healthy pregnancy, the form of your supplement matters just as much as taking one at all. Folic acid has served as the standard recommendation for decades — but active folate (methylfolate) offers a more bioavailable, more efficient alternative that works for more women, regardless of their genetics.
Your body is doing something extraordinary. Give it the very best support — in the form it can actually use.
Explore Body by Nature Supplements‘ premium pregnancy nutrition range and take the guesswork out of what your body needs most.
Always consult your midwife, GP, or healthcare professional before making changes to your supplement routine during pregnancy.