Dive into the fascinating history of Olestra, the highly anticipated fat substitute by Procter & Gamble that promised low-fat yet tasty snacks. Rebranded as 'Olean,' this miracle ingredient found its way into chips and cookies, only to become infamous due to its unsettling side effects like nausea, flatulence, diarrhea, and the unforgettable 'anal leakage.' Discover how a product once hailed as a breakthrough became a pop-culture punchline during the 1990s low-fat craze.