Modern people have dramatically altered the composition of their gut microbiome. It is showing up as colon cancer in young people, spontaneous Clostridium difficile infections, small intestinal bacterial and fungal overgrowth, inflammation, autoimmune diseases and other ways.
Here is a discussion on how to start rebuilding a broken microbiome.
A curated transcript for this video, and open discussion thread, is available for Undoctored Inner Circle subscribers at this forum link.