Randomized Trialhigh evidence
Pregnancy diet based on ancestral patterns increases growth in subcortical fetal brain regions.
Proceedings of the National Academy of Sciences of the United States of America·September 8, 2026·PMID 42673450
Why it mattersMaternal nutrition during pregnancy is a modifiable factor that may influence fetal brain development, but evidence from randomized trials is scarce. This study provides causal evidence that a specific dietary pattern can enhance growth of brain regions involved in motor control, cognition, and signal transmission, informing prenatal nutritional guidance.
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