Alpha-tocopherol hluavtaws (Tocopherol, Alpha-tocopherol hluavtaws, vitamin E, E307) yog ib qho antioxidant uas tiv thaiv cov hlwb los ntawm kev puas tsuaj los ntawm qeeb oxidation ntawm lipids (rog) thiab tsim cov dawb radicals.
Alpha-tocopherol yog ib txwm lees paub tias yog qhov zoo tshaj plaws lom antioxidant hauv tib neeg lub cev. Kev ntsuas ntawm cov vitamin E kev ua haujlwm hauv cov chav nyob thoob ntiaj teb (IU) tau ua raws li kev nce hauv kev xeeb tub vim kev tiv thaiv ntawm kev nchuav menyuam hauv cov nas cev xeeb tub thaum noj alpha-tocopherol. Nws nce ib txwm muaj li ntawm 150% ntawm cov qauv hauv niam lub cev thaum cev xeeb tub hauv cov poj niam.
1 IU ntawm vitamin E txhais tau tias yog qhov sib npaug ntawm 0.667 milligrams ntawm RRR-alpha-tocopherol (yav tas los hu ua d-alpha-tocopherol lossis 1 milligram ntawm all-rac-alpha-tocopheryl acetate (kev lag luam hu ua dl-alpha-tocopheryl, tus thawj d, l-synthetic molecular compound, tsim nyog lub npe 2-ambo-alpha-tocopherol, yog tsis tsim lawm).