影音先锋维他命，又称维他命，适量摄取可保持身体健康，而过量就会中毒。维他命已经成为价值千亿美元嘅工业，Derek Muller博士讲述维他命嘅科学同历史，与及点合理摄取。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.影音先锋