This week, Faith talks to Dr. Daniel Freedberg, a gastroenterologist at NewYork-Presbyterian and Columbia. They discuss how the gut microbiome contributes to our overall health, and what we can do to keep the microbes in our gut thriving. Along the way, Dr. Freedberg demystifies probiotics, explains the biggest threat to our gut microbes, and explains why fiber is the most powerful tool for supporting microbial diversity in our digestive system.