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Neurodevelopmental Outcomes in Infants Fed with Soy Formula: A Retrospective, National Population-Based Observational
Eun Kyo Ha1,2, Seung Won Lee2, Ju Hee Kim3
1Department of Pediatrics, Hallym University Kangnam Sacred Heart Hospital, Seoul, Korea.
Soy infant formula consumption showed no increased risk for epilepsy, ADHD, or ASD in children. This study found no significant neurodevelopmental differences compared to cow
Area of Science:
- Pediatric Nutrition
- Neurodevelopmental Pediatrics
- Public Health
Background:
- Soy-based infant formulas are increasingly common.
- Limited data exists on their long-term neurodevelopmental effects in early childhood.
Purpose of the Study:
- To investigate the impact of soy formula consumption (9-12 months) on epilepsy, neurodevelopmental disorders, and developmental status.
- To compare outcomes between soy formula and cow's milk formula fed infants.
Main Methods:
- Nationwide retrospective administrative study in Korea (2008-2009 births).
- Propensity score matching used to compare soy vs. cow's milk formula groups.
- Outcomes included epilepsy, ADHD, ASD, and developmental status, followed until 2017.
Main Results:
- No significant difference in epilepsy risk between soy (29.8/100k PY) and cow's milk formula (22.6/100k PY) groups.
- No significant associations found between soy formula and ADHD, ASD, or developmental delays.
- 11,535 children received soy formula, 142,864 received cow's milk formula.
Conclusions:
- Soy formula feeding is not associated with increased risks of epilepsy, ADHD, ASD, or developmental issues.
- Findings are based on a large cohort of the general pediatric population.
- This suggests soy formula is a safe alternative regarding neurodevelopmental outcomes.
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