妇女在怀孕期间必须要增加营养以维持自身并满足胎儿生长和发育的需要。孕妇营养的好坏直接关系到胎儿的生长和发育。国内最近对1000多例孕妇进行的营养调查发现不少的孕妇膳食结构不合理:有的营养素摄入过多,有的过少,忌食或偏食以至营养不平衡的现象相当普遍。其中,孕妇对维生素、矿物质及微量元素摄入不足十分明显,有50％以 During pregnancy, women must increase nutrition to maintain themselves and meet the needs of the fetus’s growth and development. The quality of pregnant women is directly related to fetal growth and development of nutrition. The recent domestic nutrition survey conducted on more than 1,000 pregnant women found that many pregnant women have an unreasonable diet: some have too much intake of nutrients, and some have too few, and eating or partial eaters as well as nutritional imbalances are quite common. Among them, pregnant women on the intake of vitamins, minerals and trace elements is very obvious, 50%