Adams S O, Barr G D, Huenemann R L
J Am Diet Assoc. 1978 Feb;72(2):144-7.
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 the effect these nutritional supplements would have on the outcome of pregnancy. In comparing prenatal nutrient intake and the birth weight of their infants, no significant associations were found. However, since the women were well nourished and since the sample size was small, changes in birth weight may have gone undetected. Nevertheless, a trend of increased birth weight with higher protein intake was observed.
被判定为分娩低体重儿高危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——以确定这些营养补充剂对妊娠结局的影响。在比较产前营养摄入量及其婴儿的出生体重时，未发现显著关联。然而，由于这些女性营养状况良好且样本量较小，出生体重的变化可能未被发现。尽管如此，观察到随着蛋白质摄入量增加出生体重有上升趋势。
