For many years, has not found in humans in vitamin E lack of evidence, just in the 1980 s, just confirmed that can't absorb fat premature, the normal low birth weight babies and getting some disease patients, can happen vitamin E lack. In recent years, the vitamin E the antioxidant research and provides a huge amount of new information to suggest vitamin E to prevent cardiovascular disease, the role of chronic diseases, such as cancer.
Vitamin E insoluble in water, show fat soluble. For oily shape liquid at room temperature, orange or light yellow. On the heat, acid environment is stable. Meet alkali unstable, can happen oxidation. In the grease of rancidity easy damage.
China's current adult of Vitamin H is 10 mg recommended supply total tocopherol/day, no difference between gender, also did not distinguish between different tocopherol structure and activity (Chinese nutrition society, 1988). Combined with the vitamin E physiological function of the existing knowledge and China's current residents of the actual level of the person, for our country the adult reference daily vitamin E intake of dietary recommendations proposed raising the level.
Chinese residents vitamin E intake and western people than to have not. Dietary structure is mainly to plant food is given priority to, vitamin E intake generally higher. From food source Xanthan Gum analysis, nearly 70% from edible oil, in fact is mainly vegetable oil supply. So there are two things to consider: first, the vegetable oils have a higher percentages of unsaturated fatty acid, vitamin E supply needs corresponding improving; Second, to ensure that vitamin E intake of dietary suitable will inevitably there is plenty of vegetable oil intake. Therefore, vitamin E dietary intake recommended level level must at the same time and energy intake of fat than the percentage.
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