The Research Recap: 32-Reflexology, MCFAs, Delayed Lactogenesis, Pink Breastmilk

In this episode of Behind the Latch, Margaret Salty reviews recent research findings that impact lactation consultants. From foot reflexology and postpartum comfort, to the role of medium-chain fatty acids in shaping the infant microbiome, predictive markers for delayed lactogenesis in mothers with gestational diabetes, and a rare case of contaminated breastmilk—Margaret translates the latest studies into actionable insights for IBCLCs.Key Points Covered:1. Foot Reflexology and Breastfeeding OutcomesMargaret reviews a meta-analysis examining the effect of foot reflexology on postpartum comfort and breastfeeding outcomes.Reference:Koyuncu, G., & Yıldız, D. (2024). The effect of foot reflexology on postpartum comfort and breastfeeding outcomes in postpartum women: A meta-analysis study. Complementary Therapies in Clinical Practice, 55, 101805. https://doi.org/10.1016/j.ctcp.2024.101805Practical Takeaways:Reflexology improved latch quality and breastfeeding satisfaction.It reduced breast pain and tension, easing milk transition.Enhanced maternal comfort promotes oxytocin release and milk ejection.A promising non-pharmacologic support for cesarean recovery.2. Medium-Chain Fatty Acids, Maternal Diet, and Infant Gut HealthMargaret shares findings from a Chinese study linking maternal diet, breast milk composition, and infant microbiome development.Reference:Wang, Y., et al. (2025). The concentration of medium-chain fatty acids in breast milk is influenced by maternal diet and associated with gut microbiota in infants. Journal of Human Nutrition and Dietetics, 38(2), 147–156. https://doi.org/10.1111/jhn.13220Practical Takeaways:Maternal fat intake alters medium-chain fatty acids in milk.These fatty acids influence the infant’s gut microbiota and immune function.Breast milk with higher MCFAs promotes beneficial bacteria like butyrate-producers.Encourages tailored dietary guidance during lactation.3. Sodium and Sodium-Potassium Ratio Predict Delayed LactogenesisMargaret explores a prospective study assessing electrolyte levels in breast milk and their link to delayed lactogenesis in mothers with gestational hyperglycemia.Reference:Li, X., et al. (2025). Breast milk sodium and sodium-potassium ratio predict delayed onset of lactogenesis in mothers with gestational hyperglycemia. Breastfeeding Medicine, 20(4), 190–198. https://doi.org/10.1089/bfm.2024.0234Practical Takeaways:Elevated sodium and Na:K ratios signal delayed lactogenesis II.Thresholds: sodium ≥ 26.25 mmol/L, Na:K ratio ≥ 1.646.Could support precision-based early lactation intervention.Suggests possible integration of lab-based tools into lactation care.4. Serratia Marcescens and Pink Breast Milk: A Cautionary Case ReportMargaret discusses a Tanzanian case report of a breastfed infant with GI bleeding linked to pink breast milk contaminated with Serratia marcescens.Reference:Ng’ang’a, J., et al. (2025). Serratia marcescens in breast milk and gastrointestinal bleeding in an infant: A case report from Tanzania. African Journal of Pediatric Health, 13(1), 22–27. https://doi.org/10.4314/ajph.v13i1.4Practical Takeaways:Contamination likely came from inadequately sterilized pump parts.Highlights importance of clear hygiene education for pumping parents.Pink milk may indicate dangerous...

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