Vitamania explores the history of vitamins, their discovery, and how they have become ingrained in our culture as a panacea for all sorts of ailments. Dr. Derek Muller visits laboratories, conducts interviews with experts, and travels the world to uncover the science behind these essential nutrients. He discusses the role of vitamins in modern medicine and how their use has evolved over time. There is a myth that you cannot get too many vitamins, but in reality, an overdose can be toxic. The documentary provides valuable insights into the world of health supplements and helps viewers understand the pros and cons of taking vitamin supplements. Vitamania: The Sense and Nonsense of Vitamins uncovers the complex and fascinating world of nutrients, questioning whether the huge industry surrounding these products is taking advantage of people's desire to stay healthy.