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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。
The three-day dietary analysis of three groups of male residents (group ①, city dwellers; ② group, northern farmer; ③ group, southern farmer) representing the average general standard of living was conducted using the parallel duplicate method, and their daily average per person was calculated Intake of various minerals, energy, cellulose and phytic acid content. According to the current RDA, ESADDI and ADI values, Zn is generally low; Ca reaches more than 2/3 of the RDA value; P reaches 88% -133%; Fe is sufficient but its utilization rate should be considered; The level of low and low intake of Se group also reached the minimum required amount; in the national supplement I today, I do not lack; Cu, Mo and Cr reached or exceeded the lower limit of ESADDI; Mn exceeds the high limit; but the highest intake only 10.5mg is far below the level of poisoning; high Na low K has always been the defect of our diet; As only ③ group was 29% higher than the ADI value, Cd, Hg and Pb far from the poisoning level; adequate energy; cellulose appropriate; Peasants in the north have higher phytic acid intake than those from farmers and urban residents in the South, but they are not harmful yet.