AP-MALDI	Atmospheric Pressure–Matrix-Assisted Laser Desorption/Ionization
BSA	Bovine Serum Albumin
CE	Capillary Electrophoresis
cGMP	Casein Glycomacropeptide
CMP	Caseinomacropeptide
CN	Casein
DDA	Data-Dependent Acquisition
DIA	Data-Independent Acquisition
ELISA	Enzyme-Linked Immunosorbent Assay
EMA	Economically Motivated Adulteration
ESI-MS	Electrospray Ionization–Mass Spectrometry
EU	European Union
FAO	Food and Agriculture Organization of the United Nations
FDA	Food and Drug Administration
FTIR	Fourier-Transform Infrared Spectroscopy
GLM-Lasso	Generalized Linear Model with Lasso regularization
GMP	Glycomacropeptide
IEF	Isoelectric Focusing
IgG	Immunoglobulin G
LC-MS/MS	Liquid Chromatography–Mass Spectrometry
LDA	Linear Discriminant Analysis
LFIA	Lateral Flow Immunoassay
MALDI-TOF-MS	Matrix-Assisted Laser Desorption/Ionization–Time-of-Flight–Mass Spectrometry
MFGM	Milk Fat Globule Membrane
MID	Mid-Infrared Spectroscopy
MS	Mass Spectrometry
MMP	Mare Milk Powder
NIR	Near-Infrared Spectroscopy
nLC-MS/MS	Nano Liquid Chromatography–Mass Spectrometry
NLISA	Nanozyme-Linked Immunosorbent Assay
NMR	Nuclear Magnetic Resonance
OECD	Organization for Economic Co-operation and Development
P	Phosphorylation
PAGIF	Polyacrylamide Gel
PCA	Principal Component Analysis
PCR	Polymerase Chain Reaction
PDO	Protected Designation of Origin
PGI	Protected Geographical Indication
PMM	Pasteurized Mare Milk
PLS-DA	Partial Least Squares–Discriminant Analysis
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
PTM	Post-Translational Modification
QCM	Quartz Crystal Microbalance
RSD	Relative Standard Deviation
SDS-PAGE	Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis
TSG	Traditional Specialty Guaranteed
UHPLC-ESI-QTOF-MS	Ultra-High Performance Liquid Chromatography–Electrospray Ionization–Quadrupole Time-of-Flight–Mass Spectrometry
UPLC-DAD	Ultra-Performance Liquid Chromatography–Diode Array Detector
α-La	Alpha-Lactalbumin
αs1-CN	Alpha-s1 Casein
αs2-CN	Alpha-s2 Casein
β-CN	Beta Casein
β-lg	Beta-Lactoglobulin
γ-CN	Gamma Casein
κ-CN	Kappa Casein