维生素，又称维他命，适量摄取可保持身体健康，而过量则会中毒。维生素已成为价值千亿美元的产业，Derek Muller博士讲述维生素的科学和历史，以及怎样合理摄取。 A documentary about vitamins: the history of their discovery, the dietary supplement industry, and the dangers of both deficiencies and excessive intake.
