Presented is a method for quantifying breastfeeding between a mother and a baby,the method including measuring a physiological volume indicative of stomachfullness volume for the baby； setting a signal threshold value of the physiologicalvolume to correspond to a stomach level that is less than or equal to the stomachfullness volume； obtaining an objective measurement of the physiological volumeindicative of a level of fullness of the baby's stomach； and providing anindication to the mother when the objective measurement equals or exceeds thesignal threshold value. In one embodiment, for instance, the baby's swallowsmay be recorded for determining the volume of breast milk consumed by the baby.
