22:32The Food ChainFortification: Too Much of a Good thing?BBC World Service Duration: 27 minutes Thu 6th Jul 2017, 22:32 on BBC World Service East and Southern AfricaAvailable for over a yearListen nowWho is putting micro-nutrients in your food - and who really benefits? Show more GenresFactualFood & DrinkFormatsMagazines & ReviewsBrandThe Food Chain Source: BBC Online