Objectives: Folates and choline are vital nutrients crucial for the development of the fetus, especially for the central nervous system (CNS) Adequate intake during preconception and pregnancy is essential to prevent neural tube defects (NTDs) and promote cognitive development. This review synthesizes current recommendations regarding folate and choline supplementation during preconception and pregnancy. It focuses on differences between folic acid and active folates like 5-MTHF and provides practical guidance for clinicians.
Material and methods: A comprehensive review of the literature was conducted, focusing on guidelines and recommendations from leading scientific societies, including the Polish Society of Gynecologists and Obstetricians (PTGiP), the European Food Safety Authority (EFSA), and the American College of Obstetricians and Gynecologists (ACOG). The review includes meta-analyses, randomized clinical trials, and observational studies.
Results: Folate supplementation is universally recommended to reduce the risk of NTDs, with dosage recommendations typically ranging from 0.4 to 0.8 mg daily. Active folates like 5-MTHF are particularly important for women with MTHFR mutations. Choline supplementation recommendations vary, with EFSA suggesting 400-480 mg daily for pregnant women, while other societies prioritize dietary intake over supplementation on a daily basis. Adequate choline intake supports fetal brain development and may enhance cognitive function in children.
Conclusions: Adequate folate and choline supplementation during preconception and pregnancy is essential for optimal fetal development. Supplementation with active folates (5-MTHF) is particularly beneficial for women with MTHFR mutations, who may have difficulty converting folic acid into the active form. Additional research is necessary to determine optimal choline dosages and evaluate the long-term effects on cognitive development.
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