膳食矿物质、能量、纤维素和植酸的每日摄入量研究

采用平行双份法，收集代表一般生活水平的三组男性居民（①组，城市居民；②组，北方农民；③组，南方农民）３天的膳食进行分析，并计算他们每人每日平均摄入的各种矿物质、能量、纤维素和植酸的含量。按目前的ＲＤＡ、ＥＳＡＤＤＩ和ＡＤＩ值进行评价，Ｚｎ普遍偏低；Ｃａ达到ＲＤＡ值的２／３以上；Ｐ达到８８％～１３３％；Ｆｅ充足，但应考虑其利用率；Ｓｅ、Ｉ各有高低，Ｓｅ摄入低的②组也达到最低需要量；在全民补Ｉ的今天，Ｉ不缺乏；Ｃｕ、Ｍｏ和Ｃｒ达到或高于ＥＳＡＤＤＩ的低限；Ｍｎ超过高限；但最高摄入仅为１０．５ｍｇ远未达中毒水平；高Ｎａ低Ｋ一直是我国膳食的缺陷；Ａｓ仅③组高出ＡＤＩ值２９％，Ｃｄ、Ｈｇ和Ｐｂ距中毒水平甚远；能量充足；纤维素适宜；北方农民植酸摄入较南方农民和城市居民高，但尚不致为害。

Study on The Human Dietary Intake of Minerals, Energy, Fiber and Phytic Acid

Duplicate diets of three days were collected. The diets represented general living standard of male adults. There were three types of subjects: city inhabitants in group 1, northern peasants in group 2, and southern peasants in group 3. The diets were analyzed to calculate the average per capita intake of various minerals, energy, fiber and phytic acid. The assessment of intake according to the values of RDA, ESADDI and ADI shows the following results: Zn is low, Ca comes up to 2/3 of RDA, P reaches 88%-133% of RDA, Fe appears enough to attain the standard, but the availability should be considered. The contents of Se and I in each group was varied. Even though the intake of Se is low, it reaches the minimum requirement. Since I is being supplemented for all the people, it would not be deficient. The intake levels of Cu, Mo and Cr achieve or surpass the minimum values of ESADDI. Mn intake exceeds the maximum value of ESADDI, but the highest intake was only 10. 5 mg, which is far from poisoning level. High Na and low K intakes are specific defects of Chinese diets. The level of Cd, Hg and Pb is far apart from toxicosis. As for the amount of As intake, only in group 3 is higher than ADI by 29%. The energy is full. Dietary fiber is suitable. The intake of phytic acid of northern peasants is higher than that of southern peasants and city inhabitants, but it would be harmless.