A role for genetic has been demonstrated, with evidence of an increased risk of NAFL in patients with polymorphisms, like those associated to patatin-like phospholipase domain containing 3 (PNPLA3) rs738409, transmembrane 6 superfamily member 2 (TM6SF2) rs58542926 and membrane bound O-acyltransferase domain containing 7 (MBOAT7) rs641738 (44–47). This evidence concerns the gene PNPLA3 and non-alcoholic fatty liver.