The "active ingredients" are countless of microbiota, not all of which we've seen before. Even if we did know exactly what makes up the flora/microbiom of a hea

The "active ingredients" are countless of microbiota, not all of which we've seen before. Even if we did know exactly what makes up the flora/microbiom of a healthy and happy gut, we'd likely never be able to get anywhere close to the same sampling and delicate balance that occurs through the natural equilibrium established in our stomachs. Repulsion shouldn't play a factor. People will get used to it. Remember when pig heart valve transplants were a big issue?