I have not told anyone at my office and I'm happy I didn't. They would just think it was a quick fix and not realize how hard it is somedays. I'd rather not have them look at me everytime I eat something and give their opinions. I am very successful and when they ask me I tell them I am doing Weight Watchers and excerising, and it shuts them up. I'm very happy that they don't know because this isn't a quick fix, I work at it everyday and some days are much harder then others.
Good Luck, but I would just keep it your business to your family and personal friends. PS: I've lost 60lbs and dropped from size 22 to now size 14. I have it done April 2, 2009.