FADS2 and fatty liver disease: We further investigated some lipid metabolism related genes (hmgcra, hmgcrb, hmgcs, fasn, and fads2), which were related to cholesterol synthesis, fatty acid synthase, desaturase, and mitochondrial enzyme, in order to confirm whether hesperidin could protect against hepatic steatosis by reduction of lipid metabolism and improvement of lipid homeostasis [17–20].