There are online communities of people attempting FMT on themselves. I remember seeing them even cite an online source of FMT supplies from some sketchy company operating internationally to avoid regulations. Others used very understanding family members or friends as sources.

I haven’t followed the topic for a long time, but I distinctly remember how many people were disappointed with the results of their self administered FMT. This is probably because they had unreasonable expectations about their health conditions being caused by the microbiome. The only real success stories were from people who had C. Diff and treated it with a combination of antibiotics and FMT.

However, there were a lot of negative stories. Some people had major bowel problems for a while. One person even died, though it was speculated that it was due to some of the microbiome altering antibiotics he was experimenting with.

Interesting research topic, but please don’t DIY it.