Kim W W, Kelsay J L, Judd J T, Marshall M W, Mertz W, Prather E S
Am J Clin Nutr. 1984 Dec;40(6 Suppl):1327-32. doi: 10.1093/ajcn/40.6.1327.
Mean daily intakes of calories and 19 nutrients were calculated for 13 males and 16 females, ages 20 to 53 yr, who kept daily diet records for 1 yr. Mean daily caloric and 19 selected nutrient intakes of the subjects met or exceeded the 1980 recommended dietary allowances except for iron and calcium for females. Males had higher intakes than females for all nutrients studied except crude fiber, vitamin A, and vitamin C. However, nutrient density values were comparable for both sexes, except that the females had higher nutrient density values for vitamin A than did the males. The younger subjects had higher intakes of calories and saturated fat than the older ones. The younger males had higher intakes of total fat, saturated fat, and oleic acid than the older males. The consistency of reporting food intakes examined by applying a systematic sampling method designed for this study did not vary considerably when diet records kept over a long period of time were evaluated by four methods.
对13名年龄在20至53岁之间的男性和16名年龄在20至53岁之间的女性进行了热量和19种营养素日均摄入量的计算，这些人记录了一年的日常饮食。除了女性的铁和钙之外，受试者的日均热量和19种选定营养素的摄入量达到或超过了1980年推荐的膳食摄入量。除了粗纤维、维生素A和维生素C之外，在所有研究的营养素中，男性的摄入量均高于女性。然而，两性的营养密度值相当，只是女性的维生素A营养密度值高于男性。较年轻的受试者比年长的受试者摄入更多的热量和饱和脂肪。较年轻的男性比年长的男性摄入更多的总脂肪、饱和脂肪和油酸。当用四种方法评估长时间保存的饮食记录时，通过应用为本研究设计的系统抽样方法检查的食物摄入量报告的一致性没有显著差异。
