Folic Acid
Nutrition & DietFolic acid (vitamin B9 / folate) is a B vitamin needed to build DNA and make healthy new cells. For women who may become pregnant, it is the single most important supplement — it prevents serious birth defects of the baby's brain and spine.
Also known as: Folacin, Folate, Pteroylglutamic acid, Vitamin B9
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About Folic Acid
About this summary: Written by Swasthya Plus for Indian readers, using MedlinePlus, National Library of Medicine as a reference source. For personal guidance, please consult a qualified Health Expert.
Folic acid (vitamin B9 / folate) is a B vitamin needed to build DNA and make healthy new cells. For women who may become pregnant, it is the single most important supplement — it prevents serious birth defects of the baby's brain and spine.
Why it's non-negotiable in pregnancy
- Adequate folate in the first 28 days after conception — often before a woman knows she is pregnant — prevents neural tube defects (spina bifida, anencephaly).
- Start 400 micrograms (µg) daily at least one month before trying to conceive and continue through the first trimester.
- Women on anti-seizure drugs, with diabetes, obesity, or a previous baby with a neural-tube defect need a higher dose (10× the usual) — ask a doctor.
- Iron-folic acid (IFA) tablets are distributed free to pregnant women, adolescents, and young children through Indian government health services.
Food sources
- Leafy greens — palak, methi, amaranth, mustard greens, coriander.
- Pulses — rajma, chana, moong, masoor.
- Other: eggs, liver, citrus fruits, beetroot, bananas, peanuts, fortified atta and fortified rice under India's fortification programme.
Folate deficiency beyond pregnancy
- Causes megaloblastic anaemia — fatigue, breathlessness, pale tongue, mouth ulcers.
- Common with: poor diet, alcohol dependence, coeliac disease, pregnancy, some medicines (cancer/autoimmune drugs, anti-seizure medicines, some antibiotics).
- Confirmed on a blood test (serum folate / vitamin B12).
- Treatment is usually oral folic acid — but B12 deficiency must be ruled out first; giving folic acid alone when B12 is low can worsen nerve damage.
Reference source: MedlinePlus, National Library of Medicine
