2.2 Search strategy and data extraction
We systematically searched Medline, Embase, and Cochrane Central Register of Controlled Trials from inception to December 2023 with the following search terms: (”FGF21 analogue” OR pegozafermin OR pegbelfermin OR efruxifermin) AND (”non-alcoholic hepatic steatosis” OR steatohepatitis OR NASH OR ”fatty liver disease”). The references from all included studies were also searched manually for any additional studies. Two authors (M.S. and L.B.) independently extracted the data following predefined search criteria and quality assessment. The prospective meta-analysis protocol was registered on PROSPERO on January 15, 2024, under protocol CRD42024497414.