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New device offers real time breastfeeding data for parents and clinicians

  • Scientists at Northwestern University developed a wearable device in 2025 that measures breast milk intake in real time during breastfeeding and sends data to a smartphone.
  • The device was created to address longstanding difficulties in accurately knowing how much milk a baby consumes, which current methods estimate crudely by weighing babies before and after feeds.
  • The system uses four electrodes placed on the breast to detect electrical changes correlating to milk volume, and was validated on 12 women with an accuracy within about 2 milliliters.
  • Dr. John Rogers explained that this new device removes doubts about an infant’s feeding by providing an easy and accurate method to track milk consumption as it happens, which could help reduce parental stress and enhance care in neonatal intensive care units.
  • The device could reassure breastfeeding mothers, decrease anxiety, and help optimize nutrition for vulnerable infants, especially in neonatal intensive care, although larger studies are needed to confirm long-term effects and user acceptance.
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Science Media Centre broke the news in London, United Kingdom on Monday, May 12, 2025.
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