一支烟破坏多少维生素
<SPAN style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; FLOAT: none; COLOR: rgb(51,51,51); FONT: 14px/25px Verdana, Arial, Tahoma; DISPLAY: inline !important; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"> 一支香烟，可破坏25毫克的维生素C。</SPAN><BR style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; COLOR: rgb(51,51,51); PADDING-BOTTOM: 0px; PADDING-TOP: 0px; FONT: 14px/25px Verdana, Arial, Tahoma; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; PADDING-RIGHT: 0px; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><BR style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; COLOR: rgb(51,51,51); PADDING-BOTTOM: 0px; PADDING-TOP: 0px; FONT: 14px/25px Verdana, Arial, Tahoma; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; PADDING-RIGHT: 0px; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><SPAN style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; FLOAT: none; COLOR: rgb(51,51,51); FONT: 14px/25px Verdana, Arial, Tahoma; DISPLAY: inline !important; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"> 香烟中的焦油含苯并芘，为致癌的主要化合物，烟雾中含有高浓度的活性氧和自由基，会对肺产生很大伤害。研究表明，大量补充维生素C、维生素E及β－－胡萝卜素，可降低人体内的过氧化脂肪，也会使肺癌的发病率降低。美国加利福尼亚的研究人员最近发现，维生素C可能有助于预防被动吸烟引起的伤害，这为那些不得不呆在烟雾缭绕环境中的不吸烟者提供了一种自我保护的方法。</SPAN><BR style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; COLOR: rgb(51,51,51); PADDING-BOTTOM: 0px; PADDING-TOP: 0px; FONT: 14px/25px Verdana, Arial, Tahoma; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; PADDING-RIGHT: 0px; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><BR style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; COLOR: rgb(51,51,51); PADDING-BOTTOM: 0px; PADDING-TOP: 0px; FONT: 14px/25px Verdana, Arial, Tahoma; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; PADDING-RIGHT: 0px; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><SPAN style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; FLOAT: none; COLOR: rgb(51,51,51); FONT: 14px/25px Verdana, Arial, Tahoma; DISPLAY: inline !important; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"> 研究人员将67名不吸烟的人请进烟雾缭绕的环境中，结果显示，那些每天服用500毫克维生素C的人所受的伤害很小。有关专家介绍说，被动吸烟会对人体造成氧化损害，但这种损害能被维生素C中含有的抗氧化剂所抵消。</SPAN><BR style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; COLOR: rgb(51,51,51); PADDING-BOTTOM: 0px; PADDING-TOP: 0px; FONT: 14px/25px Verdana, Arial, Tahoma; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; PADDING-RIGHT: 0px; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><BR style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; COLOR: rgb(51,51,51); PADDING-BOTTOM: 0px; PADDING-TOP: 0px; FONT: 14px/25px Verdana, Arial, Tahoma; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; PADDING-RIGHT: 0px; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><SPAN style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; FLOAT: none; COLOR: rgb(51,51,51); FONT: 14px/25px Verdana, Arial, Tahoma; DISPLAY: inline !important; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"> 据此，研究人员做了进一步的测试。他们将这67名志愿者分为3组并再次让他们进入有烟环境中，分别让他们每天服用维生素C、E和抗氧化剂α硫辛酸以及安慰剂。两个月后，与服用安慰剂的志愿者相比，前两组志愿者血液中的氧应激水平分别下降了1．4％和12％。</SPAN><BR style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; COLOR: rgb(51,51,51); PADDING-BOTTOM: 0px; PADDING-TOP: 0px; FONT: 14px/25px Verdana, Arial, Tahoma; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; PADDING-RIGHT: 0px; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><BR style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; COLOR: rgb(51,51,51); PADDING-BOTTOM: 0px; PADDING-TOP: 0px; FONT: 14px/25px Verdana, Arial, Tahoma; PADDING-LEFT: 0px; MARGIN: 0px; LETTER-SPACING: normal; PADDING-RIGHT: 0px; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"><SPAN style="WORD-WRAP: break-word; WHITE-SPACE: normal; WORD-SPACING: 0px; TEXT-TRANSFORM: none; WORD-BREAK: break-all; FLOAT: none; COLOR: rgb(51,51,51); FONT: 14px/25px Verdana, Arial, Tahoma; DISPLAY: inline !important; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; -webkit-text-stroke-width: 0px"> 因而，长期吸烟者以及长期处于烟雾中的“被动吸烟者”，应多补充维生素C、B2、E及β－－胡萝卜素。复合维生素含维生素A、天然β－－胡萝卜素、维生素D、天然维生素E、维生素B1、维生素B2、维生素B6、维生素B12、维生素C、维生素K、叶酸、泛酸等多种维生素，并含有丰富的矿物质镁、铁、铜、锌、铬、硒等等，能全面补充营养素不平衡、各种维生素、矿物质缺乏者所需的各种营养。 </SPAN>
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