BMI	Body Mass Index
WHO	Health Organization
DM	diabetes mellitus
WL	weight loss
RYGB	roux-en-Y gastric bypass
WR	weight regain
MS	metabolic surgery
GGF	gastro-gastric fistula
LSG	laparoscopic sleeve gastrectomy
DS	dumping syndrome
DSM-5	Diagnostic and Statistical Manual of Mental Disorders-Fifth Edition
AT	adipose tissue
ARC	arcuate nucleus
NPY	neuropeptide Y
AgRP	agouti-related peptide
POMC	propiomelanocortin
CART	amphetamine-regulated transcript
PVN	paraventricular nucleus
LHA	lateral hypothalamic area
NTS	nuclei of the solitary tract
EI	energy intake
PYY	peptide YY
CCK	cholecystokinin
GLP-1	glucagon-like peptide 1
PA	physical activity
TBW	total body weight
HELP	Healthy Eating and Lifestyle Post-surgery
WLM	weight-loss medications
AGB	adjustable gastric banding
LCNK	ad-libitum, low-carbohydrate, non-ketogenic, or high-protein diet
TORe	transoral outlet reduction
APC-TORe	argon plasma mucosal coagulation
APMC-TORe	argon plasma mucosal coagulation alone
ESD	endoscopic submucosal dissection
DRGB	distal Roux-en-Y gastric bypass
SADI-S	single anastomosis duodeno-ileal bypass with gastric sleeve
SG	sleeve gastrectomy