I went with the truth minus the surgery information...high protein, low carb, watching portions. Using a lot of protein shakes to balance my intake. Since i was doing this in the preop diet for 6 months no-one seemed to notice the dietary changes post op. I had my surgery over Christmas so everyone thought I was on vacation. Its almost been a year since surgery and no-one knows for sure. I'm sure some people probably think surgery but most people leave it alone. I just figure it nobody's business anyways. Now my friends are a different story, upfront with them as my wife also had surgery and told all her friends (mostly the spouses of my friends), lol. If any of my coworkers that had weight issues pulled me aside quietly and asked, I would discuss the surgery with them in detail. I just don't want to broadcast to the company at large.