Folate vs Folic Acid: What to Take Before Pregnancy

Folate and folic acid sound like the same thing, and your body needs both. But if you're planning a pregnancy, there's an important difference worth knowing. Folate vs folic acid mainly comes down to where they come from. Folate is vitamin B9, found naturally in foods like dal, palak and chana. Folic acid is the form used in supplements and fortified foods. While both help your body function normally, folic acid has strong evidence for reducing the risk of serious birth defects affecting a baby's brain and spine. That's why health authorities recommend taking 400 micrograms (mcg) of folic acid daily before conception and during early pregnancy. But why start before you're pregnant? And what about methylfolate, MTHFR gene variants and the risks of taking too much? Understanding these differences can help you make sense of the advice before choosing a supplement.

What is the difference between folate and folic acid?

Think of folate as the family name. Every form of this B vitamin is a folate. Your body needs it to make new cells and copy DNA. That work is busiest in early pregnancy, when a baby's whole body is being laid down. There are three names you will see.

• Food folate is what you get from leafy greens, dried beans, peas and citrus fruits, as MedlinePlus lists. In an Indian kitchen, that means palak, methi, sarson, rajma, chana, moong, masoor and a morning orange.

• Folic acid is the man-made form. It is the one used in supplements and added to fortified foods.

• Methylfolate, also sold as L-methylfolate or 5-MTHF, is the active form your body ends up using. It is now sold in some prenatal products as a "better" option.

The CDC states that folic acid is the only type of folate shown in studies to help prevent neural tube defects. Food folate is good for you. Methylfolate may well work too. But the trials that changed pregnancy care around the world were done with folic acid.

What are neural tube defects and why does folic acid matter?

The neural tube is a tiny fold of tissue in the early embryo. It closes to become the brain and spinal cord. If it does not close fully, the baby can be born with a neural tube defect (NTD). Two of them are spina bifida and anencephaly. In spina bifida, the spine stays open. In anencephaly, much of the brain does not form. These defects happen in the first few weeks of pregnancy, often before you know you are pregnant, according to the CDC. By the time many women realise they are pregnant, the tube may already have closed. The evidence that folic acid helps is strong. A Cochrane review of five trials with 7,391 women, 2,033 of whom had a past pregnancy affected by an NTD, found that daily folic acid, alone or with other vitamins, lowered the risk of NTDs by about 69% (risk ratio 0.31). The authors rated this high quality evidence. The benefit held at doses of 400 mcg or higher.

Why this matters more in India

Neural tube defects (NTDs), which affect the development of a baby's brain and spine, remain a concern in India. A 2024 review of 27 Indian studies estimated that around 9.5 babies per 1,000 births were affected, although the numbers varied widely between regions. The researchers highlighted the need for better awareness, folic acid supplementation and food fortification. Because the estimate comes from several smaller studies, it may not reflect the exact situation across India. Still, it shows why taking folic acid before pregnancy matters. A simple, affordable daily supplement can help reduce the risk of these serious birth defects.

Folic acid before pregnancy: how much and from when?

The guidance from major health bodies lines up closely.

• The CDC advises every woman who could become pregnant to get 400 mcg of folic acid daily. It says to start at least one month before conception and to keep going during pregnancy.

• The NHS advises 400 mcg a day while you are trying to conceive (ideally three months before) or as soon as you learn you are pregnant. It says to continue through the first 12 weeks.

• The US Preventive Services Task Force recommends a daily supplement with 400 to 800 mcg of folic acid. In 2023, it rated the net benefit as substantial, with high certainty.

So a practical plan looks like this.

1. Start 400 mcg of folic acid a day as soon as you start thinking about a baby. The NHS suggests ideally three months ahead. The CDC says at least one month before conception.

2. If you find out you are pregnant and have not been taking it, start the same day. It is still worth it.

3. Book a visit with your gynaecologist. They will move you onto a full antenatal plan with iron, calcium and other checks.

What if the pregnancy is not planned?

Many pregnancies are not planned. Picture the newly married couple who are "not trying yet" or the woman in her thirties who assumed it would take months. This is exactly why the CDC says 400 mcg daily matters even if you are not planning a pregnancy. If there is any chance you could conceive in the coming months, a daily folic acid tablet is a simple safety net.

Who needs a higher dose?

Some women need much more. The NHS lists a 5 milligram (5 mg) prescription dose if you or the baby's father has an NTD or a family history of one, or if you have had an affected pregnancy before. The same applies if you have diabetes, a blood condition such as thalassaemia or sickle cell anaemia, or take medicine for epilepsy or HIV. Note that 5 mg is 5,000 mcg. That is more than twelve times the standard dose. It is meant for these specific situations under a doctor's care. Please do not pick it up off the pharmacy shelf because the strip looks familiar.

The MTHFR debate: what does the evidence say?

If you've been reading about folic acid during pregnancy, you may have come across something called MTHFR. Some social media posts claim that people with an MTHFR gene variant cannot use folic acid properly and need methylfolate instead. But is that actually true? MTHFR is a gene that helps your body process folate. A common variant, called C677T, can affect how efficiently this happens. However, having this variant doesn't mean your body cannot use folic acid. According to the CDC, people with MTHFR variants can still process folic acid. Even those with two copies of the C677T variant have blood folate levels only about 16% lower than people without the variant when taking the same amount. That's why the CDC continues to recommend 400 mcg of folic acid daily for anyone who could become pregnant, regardless of their MTHFR status.

So, what should you do?

• You don't need an MTHFR test before starting folic acid.

• Methylfolate is another form of vitamin B9, but it doesn't have the same level of evidence as folic acid for preventing neural tube defects.

• Follow your doctor's advice if they've recommended methylfolate for a specific reason. There's no need to switch supplements simply because of something you've seen online.

Can you get enough folate from Indian food alone?

Folate-rich food is worth eating every day. A bowl of dal, a palak or methi sabzi, chana chaat, sprouted moong and seasonal fruit all add to your intake. Still, food alone is not the plan for NTD prevention. MedlinePlus notes that the recommended folic acid amounts refer to supplements and fortified foods, not the folate found naturally in food. The NHS also says it is hard to get the amount you need from food alone. So eat the dal and take the tablet. One does not replace the other.

If your diet is low in greens and pulses, you may also be short on iron. This article on iron deficiency in women explains the signs and the test to ask for.

How much folic acid is too much?

More is not better. MedlinePlus advises that adults should avoid more than 1,000 mcg of folic acid a day unless a doctor has prescribed a higher dose for a past NTD-affected pregnancy. This limit is about folic acid from tablets and fortified foods. Folate from food does not count towards it. The main concern is vitamin B12. MedlinePlus notes that, although the risk is low, higher levels of folic acid can mask a vitamin B12 deficiency. B12 comes mainly from animal foods, so if you eat little dairy or no animal food, ask your doctor to check your B12 too. Our article on vitamin B12 deficiency symptoms and treatment covers what to look out for. Stacking products can push you over the limit. A prenatal tablet, a separate folic acid tablet and a multivitamin can add up fast. If you take several products, our guide on how to audit your supplement routine can help you add up the totals.

How to read the label on a folic acid or prenatal tablet

Labels in India are not always clear. Check these points before you buy.

• Strength: look for 400 mcg (0.4 mg) for the standard dose. Strips marked 5 mg are the high dose and are meant for prescription use.

• Form: the label should say folic acid, methylfolate, L-methylfolate or 5-MTHF. Folic acid is the form shown in studies to help prevent NTDs.

• Vitamin A: the NHS says do not take cod liver oil or supplements containing vitamin A (retinol) when you are pregnant, as too much can harm the baby. Always check the label.

Is a general multivitamin the same as a prenatal?

A general multivitamin is not the same as a prenatal. A general daily multivitamin may contain some folic acid, but the amount varies and the rest of the formula is not designed for pregnancy. If you want to understand when a multivitamin makes sense in daily life, read should you take a multivitamin. For pregnancy planning, the simplest path is a plain 400 mcg folic acid tablet or a prenatal your doctor recommends.

When to see a doctor

Book a preconception visit if you are planning a baby in the next year. Tell your doctor before you start trying if any of the NHS higher-dose situations above apply to you, because you may need the 5 mg prescription dose. Also tell your doctor about every regular medicine you take before you try to conceive. See a doctor about any symptom that worries you or is not getting better. A plain strip of folic acid tablets, started early, is a cheap and simple step in pregnancy care. If a baby is anywhere in your plans for the coming year, start that strip this week. Then tell your doctor so the rest of the plan can follow.

Sources

• Folic Acid: About (Centers for Disease Control and Prevention)

• MTHFR Gene Variant and Folic Acid Facts (Centers for Disease Control and Prevention)

• Pregnancy vitamins and supplements (NHS)

• Folic acid in diet (MedlinePlus, US National Library of Medicine)

• Effects and safety of periconceptional oral folate supplementation for preventing birth defects (Cochrane Database of Systematic Reviews, 2015)

• Folic Acid Supplementation to Prevent Neural Tube Defects: USPSTF Reaffirmation Recommendation Statement (JAMA, 2023)

• Burden of neural tube defects in India: a systematic review and meta-analysis (Child's Nervous System, 2024)

Medical Disclaimer: This article is for general information and is not a substitute for advice from your doctor. Speak to a qualified healthcare professional before starting any supplement, especially if you are pregnant, breastfeeding or taking medication.