想吃的食物有肯跟是千奇百怪

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代孕妈妈在代孕早期,想吃的食物有肯跟是千奇百怪的,没关系,由于孕吐的影响,怪异的胃口也是可以接受的,一般来讲,上述现象在怀孕3个月之后就会消失。但是如果你想吃沙土、烟灰和其他古怪的东西那就要当心了,这可能是一种异食症,说明你缺乏维生素或矿物质,要及时咨询医生。这种现象医学上称异食症。吃下这些非食品类东西,对代孕妇和胎儿都是有害的。
  代孕妇在代孕期体重增加25-35磅,体重增加的结构是:平均体重增加7.5磅,乳房增加2磅,体内储存的蛋白质、脂肪、和其他营养物质增加7磅。胎盘1.5磅,子宫增大2磅,羊水2磅,血液增加4磅,体液增加4磅,当然,代孕期体重增加的数量因人而异,如果孕前就胖,那么代孕期体重增加就少。如果代孕期较瘦或是双胞胎、多胞胎体重增加就多。
  代孕期营养主要来源于饮食。饮食与代孕妇及胎儿健康有着密切的关系。比如,代孕期不能饮酒,如果代孕妇有乳糖不耐受症状(腹泻、胃肠胀气等)或不爱喝牛奶,应在医生指导下补钙。
  研究人员曾试图证实“代孕妇体内缺乏该食品中所含的那种营养素”是这一问题的起因,但事实并非如此。关于这一问题至今尚未弄明。有的代孕妇特别渴望吃巧克力、辛辣食品、水果、土豆泥等;有的代孕妇特别渴望吃非食品类东西,如,泥块、玉米淀粉等,这种现象医学上称异食症。吃下这些非食品类东西。对代孕妇和胎儿都是有害的。一般来讲,上述现象在怀孕3个月之后就会消失。
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