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目的：进行久居高原战士核黄素需要量实验研究，旨在为制定高原部队核黄素供给量标准提供参考依据。方法：在海拨３７００ｍ高原居住１～４年的５０名战士随机分５组，每人每日核黄素摄入量分别为０．６５、１．１５、１．６５、２．１５、３．１５ｍｇ，于实验第２０天测定１ｈ空腹尿中核黄素排出量、尿中核黄素／肌酐比值和４ｈ负荷尿中核黄素排出量，用两回归交点法求出久居高原战士核黄素需要量。结果：久居高原战士核黄素需要量为１．５６ｍｇ，并以此求得的供给量为１．８７ｍｇ。结论：久居高原战士核黄素需要量高于平原人群，因此，增加高原战士核黄素摄入量对维持机体正常生理功能和提高机体对高原的适应能力可能是有益的。
OBJECTIVE: To carry out experimental studies on the requirement of riboflavin for soldiers in plateau for a long time, so as to provide a reference for formulating the standard of riboflavin supply for plateau troops. Methods: Fifty soldiers who lived in the plateau of 3700m in altitude for 1 ~ 4 years were randomly divided into five groups. The intake of riboflavin per person per day was 0.65,1.15,1.65,2.15,3 . On the 20th day of the experiment, the riboflavin excretion in fasting urine, the ratio of riboflavin / creatinine in urine and the release of riboflavin in urine for 4h were determined on the 20th day of experiment. . Results: The long-serving altitude warrior riboflavin requirement of 1.56mg, and thus obtain the supply of 1.87mg. CONCLUSION: The demand of riboflavin in long-lived plateau warriors is higher than that of plain people. Therefore, increasing riboflavin intake of plateau warriors may be beneficial for maintaining the normal physiological functions of the body and improving the adaptability of the body to the plateau.