New Autism Study Deals Blow to RFK Jr. Theory - Newsweek
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A JAMA Pediatrics study tracked pesticide metabolites in pregnant women's urine — and its findings challenge a popular theory linking environmental toxins to autism.
Causal InferenceEpidemiological Study DesignEnvironmental Health HypothesisConfirmation Bias
Theory Briefing
- A study published August 24 in JAMA Pediatrics tested pesticide metabolites in urine samples taken from pregnant women, then tracked child outcomes.
- The research is being framed as a direct challenge to RFK Jr.'s public claims linking environmental chemicals to rising autism rates.
- Testing mothers during pregnancy — rather than children after diagnosis — strengthens the study's ability to separate cause from correlation.