March 3, 2026Open Access

Co-exposure to lead and cadmium is associated with increased severity of social deficits in children with autism spectrum disorders

Key Points

Co-exposure to lead and cadmium is linked to increased severity of social deficits in children with autism spectrum disorders.
The study reveals substantial associations between nutritional imbalances, heavy metal exposure, and neurodevelopmental outcomes in ASD.
Cross-sectional data highlights the necessity for environmental assessments of heavy metals to inform better dietary interventions.
The findings suggest the need for further longitudinal research to establish possible causal mechanisms of these associations.

Abstract

These results demonstrate that both nutritional imbalances and co-exposure to heavy metals such as lead and cadmium are significantly associated with behavioral symptoms and neurodevelopmental outcomes in ASD. The findings underscore the importance of integrating routine nutritional surveillance and assessment of environmental heavy metal exposure to guide personalized interventions in this population. These cross-sectional associations warrant further investigation in larger, longitudinal studies that incorporate detailed dietary and environmental assessments to explore potential causal mechanisms.

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Cite This Study

Mao et al. (Thu,) studied this question.

synapsesocial.com/papers/69a75bebc6e9836116a241cd https://doi.org/https://doi.org/10.3389/fnut.2026.1678007

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