Recently, researchers have started investigating the influence of eating-focused social media content on viewers’ body image and eating behaviour. The current systematic review collates the evidence for the relationship between exposure to eating-related social media content and people’s body image, disordered eating, food consumption, and eating-related opinions. Following PRISMA guidelines, searches were conducted on five databases (i.e., Medline, PsycINFO, Web of Science, Scopus, and ProQuest), resulting in 38 eligible studies that examined the link between eating-related content and body image, eating behaviour and/or viewers’ perceptions. Evidence showed positive relationships between exposure to certain material on social media (e.g., fast-food advertisements, clean eating, eating videos) and body image concerns, disordered eating, and consumption of, or a willingness to consume the foods seen on social media; however, studies that focused on ‘healthy food’ content showed no such link. Viewers expressed mixed feelings towards content such as nutrition information and mukbang videos which record hosts eating a large amount of food. Future research would benefit from a consistent measure of exposure to different eating-related content. There is also a need for more experimental research to examine the impact of watching different types of eating videos on body image, disordered eating, and food consumption.

中文翻译：

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深入研究数字自助餐：系统回顾与饮食相关的社交媒体内容及其与身体形象和饮食行为的关系

最近，研究人员开始调查以饮食为中心的社交媒体内容对观众身体形象和饮食行为的影响。目前的系统评价整理了接触饮食相关社交媒体内容与人们的身体形象、饮食失调、食物消费和饮食相关观点之间关系的证据。根据 PRISMA 指南，对五个数据库（即 Medline、PsycINFO、Web of Science、Scopus 和 ProQuest）进行了搜索，得出了 38 项符合条件的研究，这些研究检验了饮食相关内容与身体形象、饮食行为和/或观众的看法。有证据表明，接触社交媒体上的某些材料（例如快餐广告、清洁饮食、饮食视频）与身体形象问题、饮食失调以及消费或消费社交媒体上看到的食物的意愿之间存在正相关关系；然而，关注“健康食品”内容的研究表明没有这种联系。观众对营养信息和记录主播大量食物的吃播视频等内容表达了复杂的感受。未来的研究将受益于对不同饮食相关内容的接触程度进行一致的衡量。还需要更多的实验研究来检验观看不同类型的饮食视频对身体形象、饮食失调和食物消耗的影响。