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Maternal overweight and obesity have reached global epidemic levels, altering metabolic adaptations during pregnancy and lactation. Beyond their well-known impact on gestational outcomes, elevated BMI profoundly influences the secretion of adipokines-hormones derived from adipose tissue that circulate in maternal blood and are secreted into breast milk-thereby directly linking maternal metabolism to offspring development. In this state-of-the-art narrative review, we synthesize current evidence on how maternal overweight and obesity shape concentrations of key adipokines (leptin, adiponectin, ghrelin, obestatin, and resistin) in serum, cord blood and breast milk. Excess maternal weight robustly increases leptin, while effects on adiponectin, ghrelin, obestatin, and resistin remain uncertain. To our knowledge, this is the first review to focus specifically on the impact of maternal overweight and obesity on adipokine alterations across both pregnancy and lactation. Future studies should apply standardized sampling and analytical protocols and use longitudinal designs including body composition assessments to clarify their role in maternal and child metabolic health.
Froń et al. (Tue,) studied this question.