Examiner.comVegan weight-loss surgeon rips Paleo and other high-protein dietsExaminer.com"In 12 years of doing weight-loss surgery, I have never operated on a vegetarian," Davis said Sept. 19 on a podcast with vegan ultra-marathoner/triathlete Rich Roll. "No one's getting fat on broccoli. No one comes in and says, 'I'm eating too many ...