PTR-TOF-MS	Proton transfer reaction coupled to time-of-flight mass spectrometry
βHB	Β-hydroxybutyrate
ROC	Receiver operating characteristic
VOCs	Volatile organic compounds
GC-MS	Gas chromatography–mass spectrometry
RSD	Relative standard deviation
LOD	Limit of detection
LOQ	Limit of quantitation
DKA	Diabetic ketoacidosis
SGLT-2	Sodium-glucose transporter type 2
BMI	Body mass index
WC	Waist circumference
FBG	Fasting blood glucose
HbA1c	Blood hemoglobin a1c
TG	Triglyceride
HDL-C	High-density lipoprotein cholesterol