FFM	Fat-free mass
BW	Body weight
MBS	Metabolic and bariatric surgery
BMI	Body mass index
AAMs	Amino acid metabolites
%FFML/BWL	Percent of fat-free mass loss relative to body weight loss
%TWL	Percent total weight loss
%EWL	Percent excess weight loss
ROC	Receiver operating characteristic
FM	Fat mass
Tyr	Tyrosine
Trp	Tryptophan