维生素A强化的饮品对儿童血清视黄醇水平的影响

Effects of vitamin A fortified drinks on children's serum retinol level

目的了解维生素A强化燕麦饮品对儿童血清视黄醇水平的影响。方法选取北京市郊区某小学一、二年级6～8岁学生294名，男女各半，分为干预组和对照组，进行为期1年的营养干预，两组保持日常饮食，干预组每日补充维生素A强化燕麦饮品250ml。采用连续3日24小时膳食回顾法调查学生膳食维生素A摄入量．检测学生血清视黄醇水平。结果干预后男、女干预组及对照组维生素A的摄入量均低于国家推荐标准。干预后干预组维生素A摄入量增加（P〈0．05）。干预前，男、女干预组和对照组间血清视黄醇水平差异无统计学意义（P〉0．05），干预后干预组高于对照组（P〈0．05）。结论北京市郊区6～8岁小学生维生素A营养素的摄入量不足。补充维生素A强化燕麦饮品，提高了儿童血清视黄醇水平。

Objective To study the effects of vitamin A fortified oat drinks on children＇s serum retinol level. Methods 6-8 year-aged students from primaiy school were divided into two groups. All the sdudents had normal diets for one year and the intervention group drank 250 ml drinks everyday. Dietary vitamin A levels were calculated by 3-day 24 hour dietary recall method, and the serum retinol levels were also detected. Results Statistically significant differences of diatey vitamin A in intervention group of boys and girls were observed after intervention （ P 〈 0.05 ） , butdiatey vitamin A in all groups were lower than the national standard before and after intervention. The dietary intakes of vitamin A in intervention groups were higher than those of control groupsafter intervention. No statistic were observed in serum retinol levels before intervention （ P 〉 0.05 ） , while there were significant difference were observed after intervention （ P 〈 0.05 ）. Conclusion Vitamin A nutritional status of children from Beijing suburb district was insufficient, and vitamin A fortified oat drinks could improve retinol levels of the children.