"A dominant and useful bacterium called Akkermansia muciniphila is present in the intestinal system of all humans, from babies to the elderly. This microorganism is found in the intestinal mucus layer that protects against intruders. Even more remarkable is that this bacterium has a favourable effect on the disrupted metabolism associated with obesity." http://www.sciencedaily.com/releases/2013/05/130515113744.htm