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Maternal Perception vs Actual Breast Milk Supply: Protocol for an Observational Cross-Sectional Study
Bailey Bruckner1, Rachael Taylor2, Carmen Parata3
1Department of Human Nutrition, University of Otago, Dunedin, New Zealand.
This study investigates if mothers' perception of low milk supply matches actual human milk volume and nutrient content. Findings will aid health professionals in supporting breastfeeding mothers and improving infant nutrition.
Area of Science:
- Human lactation research
- Infant and maternal health
- Nutritional science
Background:
- Breastfeeding offers significant health benefits for mothers and infants.
- Many mothers stop breastfeeding early due to perceived insufficient milk supply.
- The link between perceived and actual milk volume/composition is unclear.
Purpose of the Study:
- To quantify human milk volume in mothers at 3 months postpartum with varying milk supply perceptions.
- To analyze human milk composition in relation to milk volume.
- To explore associations between maternal perception, milk volume, and composition.
Main Methods:
- Observational study of 150 diverse mother-infant dyads in New Zealand.
- Stable isotope technique (deuterium oxide) to measure milk volume.
- Analysis of milk macronutrients, minerals, and trace elements.
- Questionnaires for maternal perception and infant growth assessment.
Main Results:
- Study funded April 2023; recruitment began February 2025.
- As of January 2026, 91 participants enrolled.
- Full results anticipated by late 2027.
Conclusions:
- This research will clarify the relationship between perceived and actual milk supply.
- Findings will inform health professionals and breastfeeding support programs.
- Crucial for addressing maternal concerns and optimizing infant nutrition.
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