In this week’s Medical Discovery News: A recent study shows that a bacterium in the intestines appears to control diet-mediated obesity. Akkermansia muciniphila is a common resident of the human gut, living in the layer of mucus that coats the surface of the intestinal tract. MDN is hosted by professors David Niesel at UTMB and Norbert Herzog at Quinnipiac University. Learn more at www.medicaldiscoverynews.com. The column also appears in the Abilene Reporter-News.