The microorganisms that live inside your gut are like “little pets living inside your intestinal tract,” says Gail Cresci, a microbiome expert at the Cleveland Clinic. These microbes help your digestive system digest food, but also produce…

The microorganisms that live inside your gut are like “little pets living inside your intestinal tract,” says Gail Cresci, a microbiome expert at the Cleveland Clinic. These microbes help your digestive system digest food, but also produce…