维生素A强化的饮品对儿童血清视黄醇水平的影响

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250 ml。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。

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

To study the effects of vitamin A fortified oat drinks on children''s serum retinol level.Methods6-8 year-aged students from primary 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. ResultsStatistically 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).ConclusionVitamin A nutritional status of children from Beijing suburb district was insufficient, and vitamin A fortified oat drinks could improve retinol levels of the children.