维生素片：神奇还是神话？ Vitamin Pills: Miracle or Myth?

　　The vitamin industry is worth more than £400million a year in the UK alone, but what are these pills actually doing for people's health? Dr Giles Yeo aims to find out, exploring if vitamin and mineral supplements are what they appear to be and putting people's diets to the test to find out if they really need these supplements. Those he meets include a scientist in Copenhagen, ...