Suppose I had admonished you over these years that the science is settled, that there appears to be consensus, and that those who raise questions that put us steps or miles back are deniers…peddlers of junk and pseudo science.
You might think me lazy, and you would be right. That’s why I’m right about the little Sunday-school, catechism children of the Christopher Hitchens Appreciation Group on Facebook. Pathetic; a Disgrace to Christopher Hitchens are they—now causing him to be rolling in his grave when he should be resting in peace.
How many times have you heard that there’s 10 times as many bacteria in our guts than cells in our body, here? Dozens, at least. Hundreds and thousands if you account for other sources. That was the science. It was also the science for over 100 ears that babies are born with sterile guts. I still see that peddled about, but I put this in Chapter 1 of “The Gut Bug Book,” yet to come, about 2 years ago:
Where do your gut bugs come from? From 1900 until very recently, it’s been held as dogma that human infants are born with sterile guts, and only begin acquiring microbes during the trip down the birth canal and subsequently, through breastfeeding and human contact. However, we now know that’s not the case (even though you still encounter the myth frequently) and fetuses are seeded with gut bacteria while still in the womb.
 “Mom Knows Best: The Universality of Maternal Microbial Transmission.” 2013. 9 Feb. 2014 <http://www.plosbiology.org/article/info%3Adoi%2F10.1371%2Fjournal.pbio.1001631>
So much for “settled” and “consensus” science over more than 100 years, until someone bothered to take a new look.
So here’s the new science: