translate English to German: Alpha-tocopherol is traditionally recognized as the most active form of vitamin E in humans, and is a powerful biological antioxidant. The measurement of "vitamin E" activity in international units (IU) was based on fertility enhancement by the prevention of spontaneous abortions in pregnant rats relative to alpha tocopherol.
Die für den Menschen bedeutendste in der Natur vorkommende Verbindung mit Vitamin-E-Aktivität ist α-Tocopherol.