It is known that approximately 80% of the human immune system functions within the gastrointestinal tract. Gut bacteria and their metabolites play a fundamental role in the interaction between gut and other organs. Since the organic acids produced by colon bacteria (acetate, lactate, propionate, succinate and butyrate) activate a number of immune and hormonal processes, the microbiota composed of hundreds of different bacterial species is of vital importance for the normal functioning and health of the human body.
Click here for original story, Scientists study growth rate effect of gut bacteria on degradation of dietary fiber
Source: Phys.org