how does gut flora protect the body from infection
Intestinal microbiota, or gut flora, and the gut barrier determine gut health. Inside the gut are about 100 trillion live microorganisms that promote normal GI function, protect the body from infection, and regulate metabolism and the mucosal immune system.In fact, they comprise more than 75% of the immune system.ntestinal microbiota, or gut flora, and the gut barrier determine gut health. Inside the gut are about 100 trillion live microorganisms that promote normal GI function, protect the body from infection, and regulate metabolism and the mucosal immune system.