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Study Links Mother's Adversity to Breast Milk Changes

11/6/2025

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Summary

Story summary

A study in Translational Psychiatry finds mothers with adverse childhood experiences show distinct molecular profiles in their breast milk.
In 103 mother-child pairs from Wroclaw, researchers linked higher adversity to increased microRNAs and altered fatty acids in breast milk.
These breast-milk changes correlated with infant temperament, including pleasure and distress.
The authors say these signatures do not imply breastfeeding is harmful.
Future research will examine long-term effects and possible interventions.

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Story summary

A study in Translational Psychiatry finds mothers with adverse childhood experiences show distinct molecular profiles in their breast milk.
In 103 mother-child pairs from Wroclaw, researchers linked higher adversity to increased microRNAs and altered fatty acids in breast milk.
These breast-milk changes correlated with infant temperament, including pleasure and distress.
The authors say these signatures do not imply breastfeeding is harmful.
Future research will examine long-term effects and possible interventions.