Your gut system has a greater gut bacteria count than the body’s entire cell count.
You should be immediately suspicious of anyone proposing a one-size-fits-all dietary solution that doesn’t disclose their recipe or tradeoffs in ingredients sizes.
Different people have different frequencies and bacterial inhabitants when it comes to digestive bacteria.
“These studies offered glimpses of a diversity akin to a rain forest’s. Different regions of the body were home to different combinations of species. From one person to another, scientists found more tremendous variety. Many of the species that lived in one person’s mouth, for example, were missing from another’s.” Source: http://www.nytimes.com/2011/04/21/science/21gut.html?_r=0