China Academy for Rural Development (CARD), Zhejiang University, Hangzhou 310012, China.
Nutrients. 2022 Jun 24;14(13):2630. doi: 10.3390/nu14132630.
Dietary patterns in China have changed dramatically over the past few decades as the Internet has become rapidly available. Based on data from the China Health and Nutrition Survey (2006-2011), we use a two-way fixed effects model and an instrumental variable approach to determine the impact of Internet use on the dietary quality of rural residents. The results indicate that Internet use could significantly improve the dietary quality of Chinese rural residents, with an increase of about 10.4% in the China Food Pagoda Score (CFPS), mainly due to the increase in the dietary quality score for five food groups: fruits, meats, eggs, oil, and salt. We also found that Internet use significantly increased the consumption amounts of milk and its products (4 g), fruits (31 g), eggs (8 g), and vegetables (34 g), while also decreasing the intake of salts (2 g) and oil (6 g). A possible mechanism is that Internet use improves the dietary knowledge of rural residents, thus optimizing their dietary structure. Moreover, the effect of the Internet was greater among females and those who prepare food for a family. Rural residents without a college degree enjoyed more benefits. In summary, governments should further promote Internet penetration in rural areas for health purposes.
过去几十年,随着互联网的迅速普及,中国的饮食模式发生了巨大变化。本研究基于中国健康与营养调查(2006-2011 年)的数据,采用双向固定效应模型和工具变量法,考察了互联网使用对农村居民膳食质量的影响。结果表明,互联网使用显著提高了中国农村居民的膳食质量,使中国食品宝塔评分(CFPS)增加了约 10.4%,这主要归因于五类食物的膳食质量评分增加:水果、肉类、蛋类、油和盐。我们还发现,互联网使用显著增加了奶及奶制品(4 克)、水果(31 克)、蛋类(8 克)和蔬菜(34 克)的摄入量,同时减少了盐(2 克)和油(6 克)的摄入量。一种可能的机制是,互联网使用提高了农村居民的膳食知识,从而优化了他们的膳食结构。此外,互联网的影响在女性和为家庭做饭的人群中更大,没有大学学历的农村居民受益更多。总之,政府应为了健康目的,进一步推动农村地区的互联网普及。