Pretty much this. I've been wondering if any of the yogourt and other "health" foods containing living probiotic cultures survive digestion to populate our intestines? If so, is there peer-reviewed evidence you could point me to?
Yes there is evidence microbial cultures from foods survive digestion to populate our intestines. Google Scholar (https://scholar.google.com/) is a good start when looking for free access research papers. Just type in a key word like "probiotics".
