Figure 1.

FAA levels in foremilk and hindmilk of thirty women. (A) Left: Forest plot indicating the effect sizes (Hedges’ g) of the milk fraction on the FAA and protein content in human milk. Right: average levels of FAAs and the protein content in foremilk and hindmilk samples. For each subject, total levels in hindmilk and foremilk are shown for FAAs (B) and protein (C), according to the stage of lactation of the subjects at the time of milk sampling. Average levels of FAAs in foremilk and hindmilk are shown as mean ± SEM. FAA: free amino acid; EAA: essential amino acid; NEAA: non-essential amino acid.