SOD1 and steatosis: Animal experiments showed that all three kinds of rice bran meal dietary fiber could reduce TC, TG, LDL-C, AI, AST, and ALT activity and enhance HDL-C in serum of hyperlipidemic rats; they could also enhance GSH-Px and SOD activity in liver tissues of hyperlipidemic rats and at the same time reduce MDA content in liver tissues of hyperlipidemic rats, alleviate liver damage, and reduce steatosis.