Most of my co-workers tell me how bad Atkins is for me too. As they sit there shoving donuts, chips, candy and an assortment of other stuff that I choose not to eat. They tell me how eating so much meat is so bad for me - I don't eat any more now than before I started doing Atkins. I say I eat other stuff besides meat - cheese and vegetables are also in my lunch. They tell me how they couldn't eat like I do because I never eat treats. Wrong again, I eat low carb yogurt, sugar free Jello and an occasional Z Carb bar - all treats to me.
Any way, I have learned to just ignore their comments. I used to try to explain to them about how carbs work in your body and educate them a little but I gave up on that thought. Until they are ready to really listen it is a hopeless cause. I eat what I choose just the same as they eat what they choose.