The apparent involvement of mARC enzymes in lipid metabolism has received very much attention after a GWAS reported a common polymorphism of the MTARC1 gene, specifically, the mARC1 p.A165T variant, to be correlated with non-alcoholic fatty liver disease (NAFLD) and liver cirrhosis (32, 158). Here, CCL7 is linked to metabolic dysfunction-associated steatotic liver disease.