某医学院大学生维生素A营养状况评价

目的]了解目前大学生维生素A营养状况。方法]采用暗适应仪测定270名大学生暗适应时间,同时进行膳食及饮食习惯调查。结果]暗适应结果表明受检大学生中维生素A营养状况正常者占40.7%,维生素A不足者占58.9%,维生素A缺乏者占0.4%;男、女生膳食维生素A日平均摄入量为(367.6±380.7)和(332.2±335.5)μg视黄醇当量,分别占RNI的46.0%和47.5%。摄入量最低仅为RNI的10.4%;99%的学生饮食习惯处于中下等水平,39.5%的学生不考虑食品构成,动物性食品食用频率普遍较低。结论]大学生维生素A摄入水平很低。已有59.3%学生出现维生素A不足和缺乏的早期症状。大学生是维生素A缺乏的一个重要群体,应引起高度重视。

INVESTIGATION ON THE VITAMIN A NUTRITION STATUS OF STUDENTS IN A MEDICAL COLLEGE

Objective]To know the vitamin A nutrition status of medical students.Methods]The dark adaptation time of 270 students was measured by the dark adaptation appliance,while their dietary and eating habits were investigated.Results]Dark adaptation results showed that the students with normal vitamin A nutritional status accounting for 40.7%,Vitamin A deficiencies accounting for 58.9%,vitamin A lack accounting for 0.4%;Male and female average daily dietary intakes of vitamin A were 367.6 ± 380.7 and 332.2 ± 335.5 μg retinol equivalent,accounting for 46.0% and 47.5% of RNI,respectively.The minimum intake of vitamin A was only 10.4% of RNI;99% of students eating habits were irrational,39.5% of students regardless to food composition and animal foods consumption frequency were quite low.Conclusion]The level of vitamin A intake of the students was quite low.The early symptoms of vitamin A deficiencies were appear in 59.3% of the students.It is important to strengthen nutrition education and develop good eating habits to students.