The vitamin industry is worth more than £④00million a year in the UK alone, but what are these pills actually doing for people③⑨;s health? Dr Giles Yeo aims to find out, exploring if vitamin and mineral supplements are what they appear to be and putting people③⑨;s diets to the test to find out if they really need these supplements. Those he meets include a scientist in Copenhagen, ...The vitamin industry is worth more than £④00million a year in the UK alone, but what are these pills actually doing for people③⑨;s health? Dr Giles Yeo aims to find out, exploring if vitamin and mineral supplements are what they appear to be and putting people③⑨;s diets to the test to find out if they really need these supplements. Those he meets include a scientist in Copenhagen, ...