It's not inserted into the stomach. Whoever wrote that doesn't know what the hell he's talking about, or is listening to someone who doesn't know what he's talking about. It's inserted into the small bowel via the colon using the same equipment used in colonoscopies. And it's not controversial. If you have C. diff, you are suffering so horribly that grossness of the procedure just doesn't enter the equation. And the fecal transplant method is incredibly effective, and incredibly quick to solve the problem. People who have been in agony for weeks get so much better in a few hours they can be discharged from the hospital. The only issue is that fecal transplants aren't yet covered by insurance. But they aren't that expensive, less than a grand out of pocket.