A gut bug: can you believe it. They say just don’t blame calories. Drugs, too, could tip the intestinal balance toward slimming bacteria. An obesity researcher at the University of Cincinnati, warns, however, “some antibiotics may make things worse by changing the types of flora that thrive in the gut. But I wouldn’t be surprised to see people with nefarious motives say to people trying to lose weight, ‘you must have the wrong bacteria; I have something that will help you: http://www.thedailybeast.com/newsweek/2010/07/06/don-t-just-blame-calories.html