In past generations, the same infectious diseases that would have impaired or killed us are easily halted through a simple course of antibiotic medication. While I’m not in favor of contaminating our food supply with antibiotics, using them wisely in order to stop the progress of acute disease is extremely valuable. But one of their unfortunate side effects, however, is that antibiotic drugs are not selective in choosing which bacteria to kill. All the good bacterial colonies in the gut die along with the bad. Because of that, readers often write to me asking how to recover their gut health after a round of antibiotics.