C	Control group
L	Low-concentrate group
H	High-concentrate group
PCA	Principal Component Analysis
3D PCA	Three-Dimensional Principal Component Analysis
PLS-DA	Partial Least Squares Discriminant Analysis
VIP	Variable Importance in Projection
FC	Fold change
QC	Quality control
TIC	Total Ion Chromatogram
KEGG	Kyoto Encyclopedia of Genes and Genomes
HMDB	Human Metabolome Database
LC-MS/MS	Liquid Chromatography-Tandem Mass Spectrometry
UHPLC	Ultra-High Performance Liquid Chromatography
TG	Triacylglycerol
DG	Diacylglycerol
PC	Phosphatidylcholine
PE	Phosphatidylethanolamine
PS	Phosphatidylserine
PI	Phosphatidylinositol
PA	Phosphatidic acid
CL	Cardiolipin
Cer	Ceramide
SM	Sphingomyelin
LPC	Lysophosphatidylcholine
FA	Fatty acid
BisMePA	Bis(methyl)phosphatidic acid
VFA	Volatile fatty acid
FDR	False discovery rate
ANOVA	Analysis of variance
HSD	Honestly significant difference
PTFE	Polytetrafluoroethylene
EGFR	Epidermal Growth Factor Receptor