2′-FL	2′-fucosyllactose
AB-PAS	Alcian Blue-Periodic Acid-Schiff
BW	body weight
CON	control
DAB	diaminobenzidine
EFAs	essential fatty acids
ELISA	enzyme-linked immunosorbent assay
FAs	fatty acids
HFD	high-fat diet
HM	human milk
HMF	human milk fat
HMOs	human milk oligosaccharides
HRP	horseradish peroxidase
IECs	intestinal epithelial cells
IFs	infant formulas
IHC	immunohistochemical
LCFAs	long-chain fatty acids
LCT	long-chain triglyceride
LDA	linear discriminant analysis
LEfSe	linear discriminant analysis effect size
LPS	lipopolysaccharide
MCFAs	medium-chain fatty acids
MCT	medium-chain triglyceride
MLCT	medium- and long-chain triacylglycerol
MLCT + 2′-FL	the combination of MLCT and 2′-FL
NMDS	nonmetric multidimensional scaling
OTUs	operational taxonomic units
SCFAs	short-chain fatty acids
SD	standard deviation
sIgA	secretory immunoglobulin A
TGs	triglycerides
TLRs	Toll-like receptors
V/C ratio	villus height/crypt depth ratio
ZO-1	zonula occludens-1