Surprisingly, not all associated GWAS loci of FLI were associated with obesity-related lipid traits, but replicated risk loci of the FLI, FTO and ZPR1, also had associations with elevated ALT and AST levels in a recent GWAS on liver enzymes [41], further strengthening its relationship with hepatic steatosis. This evidence concerns the gene FTO and obesity due to melanocortin 4 receptor deficiency.