视屏时间及其导致的零食消费对儿童超重肥胖影响研究进展

目的 了解视屏时间及其导致的零食消费对儿童超重肥胖的影响，为控制儿童超重肥胖提供一定参考依据。方法 检索中国知网（CNKI）和PubMed数据库，对国内外视屏时间与零食行为、视屏时间导致的零食消费与超重肥胖相关的文献进行综述。结果 视屏时间增加可能导致儿童零食消费增加，其中边视屏边吃零食和观看食品广告可能是其重要原因。而且，视屏行为可能通过增加不健康零食的摄入，从而增加儿童超重肥胖的发生风险。结论 视屏时间及其所致的零食消费是影响儿童超重肥胖的重要因素。限制儿童视屏时间，培养儿童正确的零食消费观念有助于降低儿童超重肥胖的发生。

Research progress on the effects of screen time and its resulting snack consumption on overweight and obesity in children

To understand the effects of screen time and its resulting snack consumption on children’s overweight and obesity，and to provide a certain reference for controlling children’s overweight and obesity. Methods China National Knowledge Infrastructure ( CNKI) and PubMed databases were used to review the extant literature related to screen time and snack behavior at home and abroad，snack consumption caused by screen time and overweight and obesity in children. Results Increasing screen time might lead to an increase in snack consumption among children，which might be related to the fact that children ate snacks and had increased chances of seeing food advertisements when screening. Moreover，screen time might increase the risk of overweight and obesity by increasing intake of unhealthy snacks among children. Conclusion Screen time and its resulting snack consumption are important risk factors of children’s overweight and obesity. Limiting children’s screen time and cultivating children’s correct concepts of snack consumption may be beneficial to reduce the incidence of children’s overweight and obesity.