AAD	antibiotic-associated diarrhea
BMI	body mass index
CD	Crohn’s disease
EED	environmental enteric dysfunction
FMT	fecal microbiota transplantation
HOMA-IR	homeostatic model assessment of insulin resistance
IBD	inflammatory bowel diseases
IBS	irritable bowel syndrome
LPK	Lactobacillus plantarum K50
LPS	lipopolysaccharides
RYGB	Roux-en-Y gastric bypass
SCFAs	short-chain fatty acids
sIgA	secretory immunoglubulin A
UC	ulcerative colitis
WHO	World Health Organization