Author Contributions
B.N.A. conceptualized and designed the study, supervised data collection, analyzed data, drafted the initial manuscript, and critically reviewed and revised the manuscript. J.F. performed milk analyses and critically reviewed and revised the manuscript. A.R.L. and Z.T. designed the data collection instruments, collected data, and critically reviewed and revised the manuscript. K.Y. and T.R.F. critically reviewed and revised the study protocol and the manuscript. C.W. conceptualized the study, coordinated and supervised enrollment, educated mothers about milk fractioning, and critically reviewed and revised the manuscript. All authors have read and agreed to the published version of the manuscript.