The impact of breast milk relaxin 2, oxytocin, and insulin‐like peptide 3 on neonatal growth parameters in early life

Key Points

• The aim is to examine how specific hormones in breast milk influence neonatal growth during early life.
• Analyzed concentrations of relaxin 2, oxytocin, and insulin-like peptide 3 in breast milk during lactation.
• Investigated the associations of these hormones with neonatal growth parameters.
• RLX2, OXT, and INSL3 levels in breast milk change significantly during lactation.
• Higher concentrations of OXT and particularly INSL3 are linked to improved neonatal growth.