A kind of level (referred to as " omega-3) improving omega-3 fatty acid especially docosahexaenoic acid (DHA) and eicosapentaenoic/icosapentaenoic are sour (EPA), are supplemented with the high omega-3 of full algae comprising meadow is as main component by fattening beef cattle beef product diet. It is a kind of improve omega-3 level beef include detoxification beef daily foods quantitative include grass and entire algae.