Hi. I make my own raw kefir & Kombucha and you hit it on the spot about using silver, iodine, etc it kills your commensals that makeup 95 percent of all your body cells. go to http://www.quantafoods.com
and start researching Dr. Paul Yanick reports that he has done in the past years. Look at his video conference on the website. It seems its commensals and bile production.