Some cuproptosis genes were significantly differentially expressed in NAFLD patients compared with normal people (NFE2L2, ATP7B, SLC31A1, LIAS, DLD, PDHA1, PDHB, MTF1, DBT), suggesting that these cuproptosis‐related genes play an important role in the development of NAFLD. This evidence concerns the gene SLC31A1 and metabolic dysfunction-associated steatotic liver disease.