One other aspect I ignored in my earlier post is that the digestive tract actually needs solid mass in order to perform peristalsis. Hospitals have to avoid giving patients a liquid diet for too long, or else the digestive tract basically just stops — and it's a pain in the ass to restart.

Additionally, we have only the faintest idea how this might affect gut bacteria, which is an enormous component of both our digestive system as well as immune system. Without giving them our "table scraps", what happens to them?