摘要
目的:分析和描述中国18岁及以上成人膳食硒的摄入量、食物来源并进行评价.方法:数据来自"2015-2017年中国居民营养与健康状况监测"项目,问卷调查获取一般人口学特征,采用3天24小时膳食回顾结合家庭油盐调味品称重的调查进行膳食调查,计算膳食硒摄入量,并根据《中国居民膳食营养素参考摄入量(2023)》进行评价,采用Kruskal-Wallis H秩和检验比较城乡间膳食硒摄入量差异.结果:本研究共纳入66 890名18岁及以上调查对象,膳食硒摄入量平均值为(39.0±24.2)μg/d,中位数为33.9(24.4,47.1)μg/d,男性高于女性,城市居民摄入量高于农村居民,除城市男性以30～44岁年龄组最高,其他人群均以18～29岁年龄组为最高,随后摄入量均随年龄升高而降低.我国18岁及以上成人膳食硒摄入不足(低于EAR)的比例为78.7%,处于安全摄入范围(RNI-UL)的比例为12.5%,摄入过量(高于UL)的比例仅占不足0.1%.膳食硒主要食物来源是粮谷类,其次为畜肉类和鱼虾类.结论:中国18岁及以上成人存在膳食硒摄入不足风险,农村、女性和老年人群的硒摄入不足问题尤为突出.
Abstract
[Objective]To investigate and evaluate the dietary intake of selenium and its food source.[Method]Data was extracted from Chinese Nutrition and Health Surveillance(2015-2017).Demographic information were collected by questionnaires.Dietary intake was estimated using consecutive days 24 h dietary recalls and food weight record.The se intake status was evaluated according to DRIS for China(2023 edition).[Result]Totally 66 890 Chinese adults were included into analyses.The mean se dietary intake was(39.0±24.2)μg/d,with median of 33.9(24.4,47.1)μg/d.Male was reported more Se intake than female.And the figure in urban area was significantly higher than in rural area.The amount of dietary Se intake reached the peak at the age of 30-44 years old group in urban male,and then decreased with the increase of age.In rural male and both urban and rural female,the downtrend was observed with the increase of age since the age group of 18-29 years old.78.7%of the population were under the risk of Se deficiency(＜EAR),with merely 12.5%were in the safe range of intake(RNI-UL)and less than 0.1%were excessive(＞UL).The primary contributors for selerium are cereals,meat and fish.[Conclusion]There is a risk of insufficient intake of selenium in Chinese adults,and it is more severe in the population of rural area residents,female and the elderly.
维普
万方数据