Friday, September 26, 2008

Eat vitamin E supplements may cause cancer?

Recently, a new study shows that vitamin supplements can not prevent lung cancer, and may even increase the use of VE lung cancer risk. The survey by the Washington, 78,000 adults for the survey, which lasted 4 years, the investigation will include the habit of taking vitamin supplements and the incidence of lung cancer. The author of the study at the University of Washington lung disease and critical care medical researchers, Dr. ChristopherG.Slatore in a statement: "We have a wide range of vitamin supplements VC, VE and folic acid study does not prove that they can reduce the risk The risk of lung cancer. In fact, the increased VE uptake will slightly increase the risk of lung cancer. " As the United States respiratory diseases and critical care medical journal in March by the Journal reported, the study selected the age of 50-76 years of age between men and women for the study, which lasted 4 years, the population of the vitamin and way of life Conduct follow-up. There were 521 respondents was diagnosed with lung cancer. The study found that in addition to smoking, family history and other risk factors for lung cancer, and added VE between the incidence of lung cancer associated with a slight, but statistically significant correlation. Daily intake of VE for each additional amount of 100 mg, the risk of lung cancer increased by 7% - that is to say, serve on VE400 mg, 10 years troubles will increase the risk of lung cancer by 28%. There is a study that added 50 international units daily of vitamin E for heart disease will not do any good. The updated study shows that high-dose daily supplement of vitamin E (400 IU or more) will increase the mortality rate caused by a variety of factors, a study said only a day to add 400 international units of vitamin E only to have the heart Dangerous. American Cancer Society for Pharmacoepidemiology Jacobs, director of strategy, said: "It's also not vitamin supplement to prevent lung cancer has provided additional evidence." Jacobs said: "The Society does not recommend taking any vitamin supplements to prevent cancer. However, our dietary guidelines recommendation to eat all day 5 or 5 over a variety of vegetables." Under normal circumstances, healthy adult health Normal diet will not be a lack of vitamins, unless they are frail and elderly people. Jacobs said that since lung cancer is mainly due to smoking, the best preventive measure is non-smokers. Nutrition can only play a supporting role. Any person who can not quit should avoid taking β-carotene supplements, because studies show that β-carotene increased the risk of lung cancer. On the other hand, "there is a history of smoking, there is evidence that the carotenoid-rich vegetables such as carrots and sweet peas can reduce the risk of lung cancer." University of California, San Diego family and an associate professor of preventive medicine Gorham added: "Some vitamins can lower the risk of suffering from other cancers. VD we have conducted a research and found that VD can prevent colon cancer, breast cancer and ovarian cancer, has found it To prevent lung cancer is also slightly effect. " He said, but the results have not vitamin supplements, but from the sun because the sun to promote the body's synthesis of VD. Gorham said: "For a variety of vitamin supplements of these conclusions, I am not surprised. Multivitamin supplements because of VD little content, only 100 or 200 international units. To achieve the effect the prevention, the need for the international unit in 2000. If You are in the tropics, it means that the sun to 10 or 15 minutes. Southern California in the summer sun to 10 or 15 minutes, the winter will be a long time because the sun's low angle. " Gorham said that the study also found that women suffering from VD can reduce the risk of colon cancer and breast cancer

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