The truth about Vitamins (DOC)
BBC Horizon docu.
Are vitamins doing us any good? Could they even be dangerous?
Every year we spend £300 million on vitamin supplements, but do they actually do us any good? Some believe they offer the promise of preventing or even curing some of the world's biggest killers, such as heart disease and cancer. Others claim that taking large doses of some vitamins may in certain cases be harmful. So what are the facts?