BCAA	Branch Chain Amino Acid
BCKA	Branched-chain α-ketoacids
mTORc1	Mammalian Target Rapamycin Complex 1
NICE	National Institute for Clinical Excellence
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
PICOS	Population, Intervention, Comparison and Studies
PROSPERO	International Prospective Register of Systematic Reviews
T2DM	Type 2 Diabetes Mellitus
BMI	Body Mass Index
WHO	World Health Organisation
ID	Identification
IR	Insulin Resistance
SD	Standard Deviation
C2	Aceylcarnitine
CI	Confidence Interval
TSA	Trial Sequential Analysis
FBC	Fasting Blood Glucose
BP	Blood Pressure
IV	Inverse Variance
ORs	Odds Ratios
RoB	Risk of Bias
SMD	Standardised Mean Difference