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Vitamin E, abbreviated as VE. VE cannot self synthesize in the body, but it participates in metabolism, it must be supplemented in vitro. In Western,taking natural VE become a habit,as the "fourth meal".
Natural vitamin E contains four molecular components, namely alpha tocopherol, beta tocopherol, gamma tocopherol, and delta tocopherol. The order of their biological activities is alpha tocopherol>beta tocopherol>gamma tocopherol>delta tocopherol. Among them, alpha tocopherol has the highest activity, the widest distribution, and the most representative, especially D - alpha tocopherol has the highest biological activity.