由已往的膳食调查报告可以看出目前我国工人及学生的膳食蛋白质的供给量每日约在80克左右,佔膳食总热量的11—12％。本系规定的成年人蛋白质供给量亦与此相近。这个数字若与其他国家相比,似无何差异,但我国膳食蛋白质的来源多为(?)类及豆类,动物性蛋白质所佔比例极小,故多认为蛋白质的“质”较差,因而有蛋白质不 The past dietary survey report shows that the dietary protein supply of workers and students in our country is about 80 grams per day, accounting for 11-12% of the total dietary calories. The provisions of the Department of adult protein supply is also similar to this. This figure, if compared with other countries, it seems no difference, but the source of dietary protein in our country mostly (?) And beans, the proportion of animal protein is extremely small, so many believe that the protein “quality” is poor, So there is protein not