Peer-reviewed article
Nutrition, Cognition and Learning: The Role of White Matter Development and Connectivity
Brkić D, Hauser J, Rouault C, Semenova I, Mainardi F et al. ·
Summary
Written by AI, not yet AICS's view · claude-haiku-4-5-20251001This study examined how nutrition affects brain development and learning in children aged 2 to 14 years. Researchers used brain imaging, dietary records, and cognitive tests to see whether specific nutrients were linked to better brain structure and academic outcomes. They found that nutrients like DHA, iron, choline, and others were associated with improved brain connectivity and learning, and that brain development partly explained why nutrition matters for children's academic performance.
Key points
- Specific nutrients (DHA, sphingomyelin, iron, niacin, choline, palmitoleic acid) were associated with improved white matter microstructure and connectivity
- Better nutrition was linked to better cognitive and learning outcomes in school-age children
- Brain development partly mediated the relationship between nutrition and learning outcomes
- This is reported as the first study to demonstrate this pathway in school-age children
- The study used longitudinal data combining neuroimaging, dietary, and cognitive measures
Limitations
The document does not specify the sample size, geographic location, or socioeconomic characteristics of the children studied, nor does it discuss potential confounding variables or the magnitude of the effects found. The abstract does not provide information on whether findings differ by age group, sex, or baseline nutrition status.
Abstract
ABSTRACT While substantial research has examined the role of infant nutrition in early brain and cognitive development, the links between later childhood nutrition, brain development, and cognitive and academic skills remain less explored. In this work, we investigated for the first time the direct and indirect associations between nutrition intake, white matter microstructure and structural connectivity, and cognitive and academic outcomes. Using longitudinal data from typically developing children aged 2 to 14 years, we combined neuroimaging, dietary, and cognitive measures to test direct associations between nutrition and brain structure and connectivity, as well as cognitive and learning outcomes, and to assess whether brain development mediated these relationships. We found that specific nutrients, including DHA, sphingomyelin, iron, niacin, choline, and palmitoleic acid (omega-7), were associated with improved brain structure and connectivity, as well as better cognitive and learning outcomes. We also found that brain development partly mediated the association between childhood nutrition and learning outcomes. To our knowledge, this is the first study to show such a pathway in school-age children. These results add to the growing literature demonstrating the ongoing importance of nutrition beyond infancy in supporting childhood brain and cognitive development.