CatalystSezóna 15 Nahradit obrázekČíslo epizody5Gut Reaction: Part 1 - What You Eat Could Be Making You IllOverviewIn the first of a two-part special, reporter Dr Graham Phillips investigates whether what we feed the bacteria deep inside our gut could be contributing to a whole litany of diseases.Air dateAugust 14, 2014Runtime (min)30