Which nutrient is most important to support fetal neural tube development during the first trimester of pregnancy?
Calcium
Protein
Folic acid
Iron
Folic acid, also known as folate, is essential for the development of the fetal neural tube during early pregnancy. Neural tube defects, such as spina bifida, can occur if the mother has insufficient folate levels at the time of conception and in the first trimester. Iron supports blood production, calcium is crucial for fetal bone development, and protein is necessary for overall growth and repair, but none of these are specifically critical for neural tube development.
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