'Mukbang' (먹방) is a Korean video genre in which a host eats large quantities of food on camera, often while chatting with viewers — the name combines the Korean words for 'eating' and 'broadcast'. It began on AfreecaTV in South Korea around 2010 and spread globally via YouTube. If your teen watches mukbang, they are engaging with a popular Korean media format. Mostly harmless; some videos showcase unhealthy eating quantities and the genre has been criticised on health grounds.