Grumpy Old Geeks Topics Gut microbes Topic Gut microbes 2 mentions in 1 episode The hosts discuss claims about how gut microbes affect people and the commercial interest in testing them. Mentions 123: ABC, As Easy as Episode 123 Aug 14, 2015 52:46 all the microbes that we run around with us, particularly in our guts 53:25 a 23 and me for my gut bacteria