Adams S O, Huenemann R L, Bruvold W H, Barr G D
J Am Diet Assoc. 1978 Dec;73(6):630-4.
Women judged to be at high risk of delivering low-birth-weight infants were assigned to one of three supplements--high-protein beverage, low-protein beverage, or a vitamin-mineral preparation--to determine: (a) The acceptability of a liquid dietary supplement to pregnant women. (b) The effect of the dietary supplement on diets normally eaten by pregnant women. Acceptance of the high-protein beverage by the women in this study was low. Fifty per cent of the dropouts indicated a dislike for the beverage because of either poor flavor or an inability to tolerate it. The women generally consumed "adequate" diets, although there were variations. Increases in intakes of calories and protein in Group 1 were statistically significant, suggesting the high-protein beverage served as a supplement for both calories and protein; that is, these nutrients were added to the women's existing intake. For the low-protein beverage women (Group 2), statistics revealed the beverage was used as a substitute.
被判定有分娩低体重婴儿高风险的女性被分配到三种补充剂之一——高蛋白饮料、低蛋白饮料或维生素矿物质制剂——以确定：(a) 液体膳食补充剂对孕妇的可接受性。(b) 膳食补充剂对孕妇正常饮食的影响。本研究中女性对高蛋白饮料的接受度较低。50% 的退出者表示不喜欢这种饮料，原因要么是味道不佳，要么是无法耐受。尽管存在差异，但这些女性总体上饮食“充足”。第1组热量和蛋白质摄入量的增加具有统计学意义，表明高蛋白饮料起到了热量和蛋白质补充剂的作用；也就是说，这些营养素被添加到了女性现有的摄入量中。对于低蛋白饮料组的女性（第2组），统计数据显示该饮料被用作替代品。
