<p>Thevitaminindustryisworthmorethan£400millionayearintheUKalone,butwhatarethesepillsactuallydoingforpeople'shealth?DrGilesYeoaimstofindout,exploringifvitaminandmineralsupplementsarewhattheyappeartobeandputtingpeople'sdietstothetesttofindoutiftheyreallyneedthesesupplements.ThosehemeetsincludeascientistinCopenhagen,...</p>