吃綜合維他命能預防慢性病嗎?權威期刊:浪費錢
【30秒重點】
- 營養足夠的成年人,不要為了預防慢性病吃綜合維生素或礦物質。
- Annals of Internal Medicine社論說:營養足夠的成人吃大多數礦物質或維生素補充品,沒有明顯益處,甚至可能有害。
- 社論說這些維生素不該用來預防慢性病,「夠了就是夠了」。
- 社論是在該期刊登出3篇維生素療效研究後寫的,CNN也大篇幅報導。
2013/12/16
一、這事就這樣結案了:Case Closed: Multivitamins Should Not Be Used
二、CNN以最大篇幅報導:Are multivitamins a waste of money? Editorial in medical journal says yes
都是引用The Annual of Internal Medicine 極少見、頗為沈重的社論(editorial):
…we believe that the case is closed— supplementing the diet of well-nourished adults with (most) mineral or vitamin supplements has no clear benefit and might even be harmful. These vitamins should not be used for chronic disease prevention. Enough is enough.
我們相信這件案子該結案了 - 讓飲食營養足夠的成年人再去補充礦物質或維他命製劑並沒有明顯益處,甚至對身體有害。這些維他命不應該用於預防慢性疾病。足夠就好了。
人家講這樣的話不是沒有科學證據,而是在該刊登三篇談維他命療效的研究後所寫的。我懶得打字,有興趣去的自己去看。
- Oral High-Dose Multivitamins and Minerals After Myocardial Infarction: A Randomized Trial
- Long-Term Multivitamin Supplementation and Cognitive Function in Men: A Randomized Trial
- Vitamin and Mineral Supplements in the Primary Prevention of Cardiovascular Disease and Cancer: An Updated Systematic Evidence Review for the U.S. Preventive Services Task Force
以下美國消費者報導中 Stephen 醫師的一段話非常有道理:「The biology is complicated,」 says Stephen P. Fortmann, M.D., senior investigator at Kaiser Permanente's Center for Health Research in Portland, Ore. In the case of antioxidants, for example, 「hundreds of nutrients affect antioxidant function in the body, so it's not surprising that taking just a few isolated ones might have no effect or even mess up the system,」 (翻譯:生物學是複雜的...數百種營養物會影響身體的抗氧化功能,因此僅僅吃下幾種純化抽取出來的營養品可能對於身體沒效用,甚至搞壞身體,這並不讓人意外。)

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