How does folate in green beans specifically support fetal development during pregnancy?

It is required for the proper formation of the fetal brain and spinal cord.

Folate, also known as Vitamin B9, is considered a non-negotiable nutrient during pregnancy, particularly in the early weeks surrounding conception. Its primary developmental role is to facilitate the rapid and correct formation of the neural tube, which ultimately develops into the baby's entire central nervous system, encompassing both the brain and the spinal cord. Sufficient intake of folate dramatically reduces the risk associated with severe congenital disorders such as anencephaly (absence of major parts of the brain and skull) and spina bifida (incomplete closing of the spine). Beyond this crucial fetal requirement, this B vitamin also supports maternal mental well-being by helping to regulate homocysteine levels, thereby safeguarding the proper production of mood-governing neurotransmitters like serotonin and dopamine.