Why should you take folic acid when preparing for pregnancy?

Folic acid is a key nutrient during pregnancy preparation. Its main function isPrevent fetal neural tube defects(such as spina bifida, anencephaly), and support early embryonic development.This article will start from the aspects of folic acid’s role, scientific basis, supplement suggestions and product selection to help expectant parents scientifically prepare for pregnancy.

1. The core role and scientific basis of folic acid

Folic acid (vitamin B9) is essential for DNA synthesis and cell division.Research shows thatSupplement folic acid from 3 months before pregnancy to early pregnancy, can reduce the risk of neural tube defects by 70% (data source: US CDC).In addition, folic acid can prevent anemia in pregnant women and promote placental health.The World Health Organization (WHO) recommends that women of childbearing age take a daily supplement400 mcg folic acid, high-risk groups (such as those who have given birth to children with neural tube defects in the past) need to increase the dosage as directed by the doctor.

2. Time and method of folic acid supplementation

Because the fetal neural tube forms 3-4 weeks after conception, and many women are not aware of their pregnancy at this time,Supplement in advance during pregnancy preparation stageCrucial.Folic acid can be obtained through foods (such as green leafy vegetables, legumes) and supplements, but cooking can destroy natural folic acid.Synthetic folic acid supplements(such as Silian, Elevi) are more stable and have high absorption rate.The Chinese Nutrition Society recommends that women preparing for pregnancy should insist on daily supplementation until 3 months after pregnancy.

3. Selection and precautions of folic acid products

Commercially available folic acid products are divided into single folic acid tablets and multivitamins (containing folic acid).Please note when choosing:Dosage compliance(Not to exceed 1000 mcg/day unless advised by a doctor),Ingredients safe(Avoid unknown additives).Common brands include:

4. Summary and scientific pregnancy preparation suggestions

Folic acid helps prepare for pregnancy"Golden Nutrients", it is necessary to reduce fetal risks through scientific supplementation.It is recommended that both husband and wife participate together: women should supplement folic acid, and men should improve their diet (such as zinc and vitamin E).While preparing for pregnancy, you also need to avoid smoking and drinking, maintain a regular schedule, and develop a personalized plan based on prenatal check-ups.

Quote sources:
1. U.S. Centers for Disease Control and Prevention (CDC) "Guidelines for the Prevention of Folic Acid and Birth Defects"
2. Chinese Nutrition Society’s “Dietary Guidelines for Chinese Residents (2022)”
3. World Health Organization (WHO) "Preconception Health Care Recommendations"