AMSTAR2	Assessment of multiple systematic reviews
CI	confidence interval
CLA	conjugated linoleic acid
CVD	cardiovascular disease
FFQ	food-frequency questionnaire
FODMAP	Oligo-, Di-, and Mono-saccharides, And Polyols
GRADE	Grading of Recommendations Assessment Development, and Evaluation
I2 and Q Tests	statistical heterogeneity tests
IBS	irritable bowel syndrome
IGF-I	insulin-like growth factor-I
IL-6	interleukin-6
JBI	Joanna Briggs Institute
mg	Milligrams
MINORS	Methodological Index for Non-Randomized Studies
NIH	National Institute of Health
NOS	Newcastle–Ottawa Scale
OR	Odds Ratio
OTC	over the counter
PICOs	Population; Intervention; Comparison; Outcomes; Studies design
PRISMA	Preferred Reporting Items for Systematic reviews and Meta-Analyses
PUFAs	polyunsaturated fatty acids
RCTs	Randomized controlled trials
RoB2	Risk of Bias 2.0
ROBINS-I=	Risk of Bias of Non-Randomized Studies of Interventions
RR	Relative Risk
SFA	saturated fatty acids
SHBG	sex hormone-binding globulin
STROBE	Strengthening the reporting of observational studies in epidemiology
TFA	trans fatty acids
TGF-β	transforming growth factor β
TNF-α	tumor necrosis factor-alpha