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。 Almost one billion of us take a regular dietary supplement, mainly vitamin tablets. Vitamins are enthusiastically endorsed by celebrities, and vitamin-fortified foods line our supermarket shelves. But how safe are these products? Is it true that vitamins are “natural” and therefore can’t do you any harm? How are they regulated, and how can parents make the right choices for their children’s health? These surprisingly urgent questions are investigated by scientist Dr Derek Muller in Vitamania, the latest documentary made by Emmy Award-winning Australian filmmakers, Genepool Productions.