BPA Detected in 51% of Breast Milk Samples at One Month in 336-Pair Italian Cohort

The ENDO 2026 abstract reported serial sampling at one, three, and six months postpartum measuring more than fifty EDCs. Phthalates reached 90.2% prevalence in milk at one month and 86.5% at six months; glufosinate and methylparaben showed similar persistence. Infant urine reflected rising internal dose for BPS, parabens, and dibutyl phthalate, consistent with ongoing lactational transfer plus later dietary and dermal sources.

These observational data align with earlier European biomonitoring cohorts that linked early phthalate and bisphenol exposure to altered anogenital distance and later metabolic markers. Unlike those studies, LIFE-MILCH captures the narrow window before complementary feeding, when breast milk constitutes the dominant exposure route and when effects on steroidogenesis and neurodevelopment are most amplified.

Regulatory responses already underway in Italy include voluntary product monitoring agreements. Next steps require longitudinal follow-up of the same infants through age five to test whether measured EDC levels predict growth trajectories or neurodevelopmental scores, plus controlled intervention trials that reduce maternal exposure to quantify milk concentration changes.