田径专项学生的营养调查

本调查了49名18—23岁田径专项学生的营养状况。结果表明，各种营养素摄入量，男性除VB1、Vc外，其他营养素均达RDA的100％以上；女生仅有铁、胡萝卜素达RDA，其他营养素均不足。三大营养素的热量构成比例不够合理，蛋白质、脂肪偏低，碳水化合物偏高。能量消耗调查提示女生热能供给不能补偿能量消耗，应调整膳食结构，适当提高蛋白质、脂肪比例，增加动物和豆类蛋白质的摄入量，提高女生的热量和各种营养素的供给量。

Nutrition Survey on Students Majored in Track and Field

Its a survey on the nutrition condition of forty_mine athletes from 18 to 23.It has proved that the nutritions elements the men athletes take in reach RDA besides V B1 and Vc,while for women athletes,only iron and carotene meet RDA.The proportion of the calorific value of three major nutritous elements is imbalanced protein and fat low,carbonhydrate high.An energy comsumption survey implys that what supplys women athletes does not meet what they demand.Thus ,diet structure should be adjusted,the absorption to fat should be expanded and the absorption of animal and bear protein should be raised so as to improve the calorific value and nutritions supply to women athletes.