alt Hacker News> [...] the treatment, which involved a bowel cleanse and daily transplants of fecal microbiota over a period of seven to eight weeks
Maybe I'm misinterpreting what the process of that daily transplant looked like, but I expect they ate a not insignificant amount of hospital food if there were 7-8 weeks of daily treatments.
I didn't realize it was such a protracted process, but even if it's a long series of daily treatment, they aren't going to admit you for that if it can be done outpatient. You will be admitted if it's a risky enough procedure that it requires extended/overnight observation. If you can safely go home and come back the next day that is what they will ask you to do.