A bunch of twists and turns to this.
To start with, a relatively new product sold in grocery stores is called “Kefir”, and it is like a flavored or unflavored yoghurt smoothie drink. Typically they have about 10 different live bacteria types, but can contain a selection of the following:
http://www.culturesforhealth.com/milk-kefir-grains-composition-bacteria-yeast
The study of intestinal flora is pretty new, but in ten years, there is a good chance it will become a very important part of medicine.
It is highly recommended that you drink a cup of Kefir in between doses of antibiotics, both to restore your flora, and to fend off drug resistant bacteria.
I remember seeing kefir in grocery stores 30 years ago. It’s not that new. But it is good.
Yogurt is great and is helpful with general gut health but if it can replace beneficial coloform bacteria in your gut, they have some QA problems at the plant.
The fecal transplant carries bugs such as E. coli, essential to gut health but forbidden in food and drink by regulation.