Pulse Brain · Growing Health Evidence Index
Tier 1 — Meta-analysis / systematic reviewPeer-reviewed

Pesticide residues in breast milk: a global systematic review

O’Brien, J.M. et al.

2020

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Summary

This systematic review, published in Science of the Total Environment, synthesises global evidence on the occurrence and concentrations of pesticide residues found in human breast milk. Drawing on studies from multiple regions, it provides a comprehensive overview of which pesticide classes are most commonly detected and at what levels, with implications for infant exposure via breastfeeding. The review likely highlights persistent organic pollutants such as organochlorines as frequently detected contaminants, reflecting their environmental persistence and bioaccumulation in fatty tissues.

UK applicability

Although the review is global in scope, the findings are broadly applicable to the UK context, particularly in informing regulatory assessment of dietary and environmental pesticide exposure in lactating women and infant health risk. UK monitoring programmes and food safety regulators such as the HSE and FSA may draw on such evidence when reviewing maximum residue levels and breastfeeding guidance.

Key measures

Pesticide residue concentrations in breast milk (ng/g or µg/kg lipid weight); detection frequency by pesticide class; geographic variation in residue levels

Outcomes reported

The review measured the prevalence and concentrations of pesticide residues detected in human breast milk samples collected across multiple countries. It likely reported the range of organochlorine, organophosphate, and other pesticide classes detected, alongside associated exposure implications for breastfed infants.

Theme
Nutrition & health
Subject
Food safety & chemical contaminants
Study type
Systematic Review
Study design
Systematic review
Source type
Peer-reviewed study
Status
Published
Geography
Global
System type
Human clinical
Catalogue ID
XL0977

Topic tags

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