📖 Definition
The synthetic form of folate (vitamin B9), essential for DNA synthesis and cell division. Adequate folic acid before conception and in the first 4 weeks of pregnancy reduces the risk of neural tube defects (like spina bifida and anencephaly) by up to 70%. The recommended dose is 400–800mcg/day for most women, starting at least 1 month before trying to conceive. Found naturally in leafy greens, legumes, and fortified foods.