Hi Anna, I checked your profile and your goal weight is perfectly reasonable for your height. I think that people sometimes don't have a sense of what is a sensible weight for people of a different height. Your coworker is probably thinking about how 120 would look on her, and not realizing that a lower weight is appropriate for you. For instance if she were 5'8", 120 would be seriously underweight. (I'm 5'1" so I'm in about the same boat as you.)

--Sarah

ps: on the topic, my doctor was terrific about Atkins. When I told him I was on a low carb diet he said "Good! Then you're taking care of yourself." What a relief!