Dev Psychopathol. 2026 May 8:1-15. doi: 10.1017/S0954579426101527. Online ahead of print. ABSTRACT BACKGROUND: Studies indicate that alterations in gut microbiota composition (GMC) during the first 1,000 days of life are associated with neurodevelopment and further behavioral development. However, research on the associations between GMC and executive functions (EFs) in childhood…

