When Emily Gellis hears rumors of people suffering horrible side effects from a trendy diet she springs into action. Armed with over a hundred thousand Instagram followers, Emily launches a social media crusade to expose F-Factor and its founder, Tanya Zuckerbrot. It’s the start of a feud that will attract trolls, lawyers, and, eventually, national media all because of fiber. From Wondery, this is a story about wealth, wellness, and influence narrated by Casey Wilson.

Binge all episodes of Fed Up exclusively and ad-free by joining Wondery+ in the Wondery App, Apple Podcasts or Spotify. Start your free trial by visiting https://wondery.com/links/fed-up/ now.