A reflexive thematic analysis of #WhatIEatInADay on TikTok.

Eating-related content is common on TikTok, a popular video-based social media platform, but studies of eating-related content on TikTok are limited. Given the documented association between social media use and disordered eating, investigation of eating-related content on TikTok is needed. One subset of popular eating-related content is "What I Eat in a Day" (#WhatIEatInADay), in which a creator documents the food they eat over the assumed span of a single day. We sought to evaluate the content of TikTok #WhatIEatInADay videos (N = 100) using reflexive thematic analysis. Two primary types of videos emerged. First, Lifestyle videos (N = 60), which included aesthetic elements, presentations of clean eating, stylized meals, promotion of weight loss and the thin ideal, normalization of eating as a fat woman, and disordered eating content. Second, Eating Only videos (N = 40), which were primarily focused on food, and included upbeat music, an emphasis on highly palatable foods, displays of irony, emojis, and excessive consumption of food. Because viewing eating-related social media content has been associated with disordered eating, both types of TikTok #WhatIEatInADay videos may be harmful to vulnerable youth. Given the popularity of TikTok and #WhatIEatinADay, clinicians and researchers should consider the potential impact of this trend. Future research should examine the impact of viewing TikTok #WhatIEatInADay videos on disordered eating risk factors and behaviors.