BMI	Body Mass Index
CI	Confidence Interval
CPB	Cumulative Preventable Burden
CpG	Cytosine-phosphate-Guanine
DL	DerSimonian–Laird
DNA	Deoxyribonucleic Acid
EAA	Epigenetic Age Acceleration
GRADE	Grading of Recommendations, Assessment, Development and Evaluation
HR	Hazard Ratio
I2	I-squared (heterogeneity statistic)
MEAB-Index	Modifiable Epigenetic Aging Burden Index
MEDLINE	Medical Literature Analysis and Retrieval System Online
NOS	Newcastle–Ottawa Scale
OR	Odds Ratio
PICOS	Population, Exposure, Comparator, Outcome, Study design
PMC	PubMed Central
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
PROSPERO	International Prospective Register of Systematic Reviews
RoB 2	Cochrane Risk of Bias 2 tool
SD	Standard Deviation
SE	Standard Error
SMD	Standardized Mean Difference
τ2	Tau-squared (between-study variance)