Snowman M K
J Am Diet Assoc. 1979 Feb;74(2):124-9.
Twenty-four-hr. food recall records taken by home visitors in an intervention program for disadvantaged families yielded data similar to three-day records and 24-hr. recalls taken by nutritionists. The young, urban, low-income expectant mothers studied had intakes below the recommended allowances for all nutrients studied except ascorbic acid. Energy, calcium, and iron were particularly low. The use of energy- and/or sodium-restricted diets during pregnancy was associated with lower intakes of other nutrients. Recent studies showed that low energy intake appears common among low-income, young, pregnant women.
在一项针对弱势家庭的干预项目中,家访人员记录的24小时食物召回记录所产生的数据,与营养师记录的三日食物记录及24小时召回记录相似。所研究的年轻、居住在城市的低收入孕妇,除抗坏血酸外,所有研究营养素的摄入量均低于推荐摄入量。能量、钙和铁的摄入量尤其低。孕期使用能量和/或钠限制饮食与其他营养素摄入量较低有关。最近的研究表明,低能量摄入在低收入、年轻孕妇中似乎很常见。