Coltyy's Blue Food Coloring Experiment refers to a viral series of TikTok videos by creator Coltyy, who documented his journey of consuming blue food coloring daily until his bowel movements changed color. The experiment gained massive traction in early 2024 for its bizarre premise and the creator's increasingly blue-stained mouth and teeth. It evolved into a meme template representing extreme commitment to a bit or the documentation of a self-inflicted, nonsensical transformation. Users often use this template to parody the lengths influencers go for views or to track their own absurd 'Day 1 vs Day 30' progress in various comedic contexts.