It is well established that FMT is highly effective in recurrent C diff infections. FMT has been tried in many other illnesses, including obesity, autism, schizophrenia, irritable bowel syndrome, ulcerative colitis, Crohn’ Disease, and many others. British investigators surveyed all the relevant studies that looked at other illnesses, and there was no compelling evidence that favored the use of FMT in any situation other than recurrent C diff. Digestive Diseases and Sciences, November 2018.
