Fecal microbiota transplantation is a method of restoring beneficial bacteria in the colon. The only approved use for fecal transplantation is for someone infected with Clostridiodes difficile (or C. diff) that’s unresponsive to antibiotics. The procedure involves a colonoscopy and transplants feces from a healthy person into a sick person.
In the U.S., doctors completed the first fecal transplants for C. diff infections in 1958. But the practice dates back to 4th century China, where they used a fecal suspension called “yellow soup” to treat digestive problems.