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应用２４小时回顾法（经量化控制）对１２６名孕中、晚期妇女膳食摄取情况进行调查。结果发现，孕妇食物结构基本合理，孕中期粮谷类、动物性食品、蔬菜水果类及豆类摄入量分别为３１９．９ｇ、２７５．９ｇ、６９８．８ｇ和１７２．２ｇ；孕晚期与此接近，但乳及乳制品摄入偏低。营养素分析表明，热能蛋白质摄入量均达标准供给量（ＲＤＡ）的９０％以上，Ｓｅ、Ｖｃ、尼克酸、ＶＥ等摄入量均在ＲＤＡ的９５％以上，但钙、铁、锌、硫胺素、核黄素均未达到ＲＤＡ的８０％；孕晚期缺乏更为明显。同期，从１２６例孕妇中抽取３０例用３日称重法进行膳食调查，并将其结果与２４小时回顾法进行显著性检验，结果表明两种方法所得食物及各营养素摄入量均无显著性差异（Ｐ＞０．０５）。
A 24-hour retrospective (quantitatively controlled) survey of dietary intakes of 126 middle- and late-stage women was conducted. The results showed that the food structure of pregnant women was basically reasonable. The intake of grains, animal foods, fruits and vegetables and beans during the second trimester were 319.9g, 275.9g, 698.8g and 172.2g, respectively. In the second trimester, , But low intake of milk and dairy products. Nutrient analysis showed that the thermal protein intake reached more than 90% of the standard supply (RDA), and the intake of Se, Vc, niacin and VE were above 95% of the RDA, but calcium, iron, zinc and sulfur Ammonia, riboflavin did not reach 80% of RDA; the third trimester of pregnancy is more obvious. Over the same period, from 126 pregnant women, 30 cases were surveyed by the 3-day weighing method and the results were compared with the 24-hour retrospective test. The results showed that there was no significant difference between the two methods in the intake of food and nutrients Sex differences (P> 0.05).