The Effects of Exercise on Breastmilk Composition Supply; A Brief Literature Review

Objective: The objective of this brief literature review was to identify and summarize the research. on exercise's effects on breastmilk composition and supply and report the implications of these findings. Method: An online database search was conducted; sixteen articles met the inclusion criteria and were included within the review. Results: Breastfeeding mothers were observed to have higher total milk volume, IgA, and lactic acid concentrations after maximal exercising. Exercising does not seem to affect lipid or major micronutrient content in breastmilk. These changes in supply and composition do not seem to affect lactation performance or infant acceptance. Conclusion: Due to the limited evidence available, further research needs to be conducted to draw stronger conclusions on how exercise affects breastmilk composition and supply. Research is also warranted to clarify exercise/physical activity guidelines for women who are breastfeeding.