Is Maternal Body Weight or Composition Associated with Onset of Lactogenesis II, Human Milk Production, or Infant Consumption of Mother's Own Milk? A Systematic Review and Meta-Analysis.

ABSTRACT: Maternal adiposity impacts lactation performance, but the pathways are unclear. We conducted a systematic review to understand whether maternal adiposity (body mass index [BMI] or percentage fat mass) is associated with onset of lactogenesis II (copious milk; hours), human milk production (expressed volume/24 h), and infant consumption of mother's own milk (volume/24 h). We used random-effects standard meta-analyses to compare the relative risk (RR) of delayed lactogenesis II (>72 h) between mothers classified as underweight (BMI <18.5 kg/m²), healthy weight (BMI, 18.5-24.9 kg/m²), and overweight/obese (BMI ≥25 kg/m²) and random-effects meta-regressions to examine associations with hours to lactogenesis II and infant milk consumption. The certainty of evide

SUBMITTER: Montana AV 

PROVIDER: S-EPMC11163153 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature