卫生研究

目的 探讨中国儿童青少年的膳食纤维摄入现状。方法 利用2019—2021年中国0～18岁儿童营养与健康系统调查数据，对14个省28个农村及城市调查点的6116名儿童通过连续3天24小时膳食回顾法记录食物摄入量，并根据中国食物成分表计算膳食纤维摄入量。结果 6～17岁儿童的膳食纤维摄入量中位数为7.30 g/d,能量标化后的摄入量为3.41 g/1000 kcal;城市儿童的膳食纤维摄入量(3.66 g/1000 kcal)高于农村(3.21 g/1000 kcal)(P<0.05)。仅有8.68%的6～17岁儿童膳食纤维摄入达到推荐摄入量，其中9～11岁的城市男童达到推荐量的比例(16.46%)最高，而6～8岁的农村男童(5.41%)最低。结论 2019—2021年中国6～17岁儿童青少年的膳食纤维摄入量不足，尤其是农村地区和低年龄段的儿童。

OBJECTIVE To explore the current status of dietary fiber intake in Chinese children and adolescents.METHODS Using the data from the 2019-2021 China Nutrition and Health System Survey for Children Aged 0-18, 6116 school-age children from 28 rural and urban survey sites in 14 provinces of China were recorded for their food intake using a continuous 3-day 24-hour dietary review method, and their dietary fiber intake was calculated based on the Chinese Food Composition Table.RESULTS The median dietary fiber intake for school-aged children aged 6-17 was 7.30 grams per day, and the energy standardized intake was 3.41 grams per 1000 calories. The dietary fiber intake of urban children(3.66 g/1000 kcal) is higher than that of rural children(3.21 g/1000 kcal), and the difference is significant(P<0.05). However, only 8.68% of school-age children aged 6-17 have reached the recommended dietary fiber intake, with urban boys aged 9-11(16.46%) having the highest intake and rural boys aged 6-8(5.41%) having the lowest.CONCLUSION The dietary fiber intake of school-age children and adolescents in China is insufficient, especially in rural areas and younger age groups.