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孕期的饮食营养,不仅影响到胎儿的正常发育,也关系到出生后婴幼儿的体力和智力。因此,科学调配妊娠各时期的饮食营养,对优孕、优生有着十分重要的意义。妊娠前期。即怀孕后1至12周。此期胎儿的各器官、内脏正处于分化形成阶段,胎儿生长速度缓慢,需要的热量和营养物质不显著增加,并不需要
Diet nutrition during pregnancy, not only affects the normal development of the fetus, but also related to the physical and mental after birth infants and young children. Therefore, the scientific deployment of dietary nutrition during pregnancy, pregnancy, eugenics is very important. Early pregnancy. 1 to 12 weeks after pregnancy. During this period of fetal organs, offal is in the stage of differentiation formation, fetal growth rate is slow, the required calories and nutrients do not significantly increase, do not need