孕前的饮食原则--长沙美食网

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孕前的饮食原则

http://eat.csonline.com.cn 2007年04月12日16时40分星辰美食网

　　孕前的营养供给方案还应参照平衡膳食的原则，结合受孕的生理特点进行饮食安排。

　　首先要保证热能的充足供给，最好在每天供给正常成人需要的2200kcal的基础上，再加上400kcal，以供给性生活的消耗，同时为受孕积蓄一部分能量，这样才能使“精强卵壮”，为受孕和优生创造必要条件。

　　其次要保证充足优质蛋白质的供给，男女双方应每天在饮食中摄取优质蛋白质40－60g，保证受精卵的正常发育。

　　第三是保证脂肪的供给。脂肪是机体热能的主要来源，其所含必需脂肪酸是构成机体细胞组织不可缺少的物质，增加优质脂肪的摄入对怀孕有益。

　　第四是充足的无机盐和微量元素，钙质、铁、锌、铜等构成骨骼、制造血液、提高智力，维持体内代谢的平衡。

　　最后是供给适量的维生素，能够有助于精子、卵子及受精卵的发育与成长，但是过量的维生素，如脂溶性维生素也会对身体有害，因此建议男女双方多从食物中摄取，慎重补充维生素制剂。

　　具体的说，建议夫妻双方每天摄入畜肉150－200g、鸡蛋1－2个、豆制品50－150g、蔬菜500g、水果100－150g、主食400－600g、植物油40－50g、硬果类食物20－50g、牛奶500ml。

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