Maternal phylloquinone intake and early neurodevelopment: implications for prenatal nutrition

Area of Science:

• Neuroscience
• Developmental Biology
• Nutritional Science

Background:

• Vitamin K is essential for blood coagulation.
• Emerging evidence suggests roles beyond hemostasis, including brain development.
• Current prenatal vitamin K recommendations are based solely on coagulation needs.

Purpose of the Study:

• To evaluate the role of vitamin K in supporting neurodevelopment.
• To assess the adequacy of current prenatal vitamin K recommendations for optimal brain development.
• To propose updated vitamin K intake targets for pregnant individuals.

Main Methods:

• Review of existing literature on vitamin K metabolism and function.
• Analysis of sphingolipid regulation and NF-κB pathway inhibition by vitamin K.
• Examination of vitamin K's impact on maternal glucose metabolism and insulin sensitivity.

Main Results:

• Vitamin K supports neurodevelopment via sphingolipid regulation, crucial for myelination and neuronal integrity.
• Vitamin K exhibits anti-inflammatory effects by inhibiting the NF-κB pathway.
• Vitamin K improves maternal glucose metabolism and insulin sensitivity.

Conclusions:

• Current prenatal vitamin K intake (70-90 µg/day) may be insufficient for optimal fetal brain development.
• An increased target intake of 140 µg/day for vitamin K should be considered in future prenatal guidelines.
• Routine assessment of vitamin K status in prenatal care can promote neurodevelopment and reduce health disparities.