The nature of being alive means we are in constant motion, down to the molecular level. It also means our boundary with the outside world isn't as severe as we might like to think. Our entire digestive tract is filled with multi-strain living bacterial organisms - most of which are there to keep us healthy.

In "Part 1" of my Gut Health Series, we'll explore the good guys, the bad guys and why our Gut Flora matters more than almost any other “health treatment” out there.