They are right, it really does effect everyone differently, in fact, I just had to give up my beloved coffee and switch to hot tea (soooo not the same!) and have lost 3 lbs since ...not all of a sudden of course, but I think it was what had been the cause of my stalling....I will have to suffer through it for now, but it's worth it!
I do know some people on Atkins that drink coffee every day and have no problems...lucky them!
Good luck with your coffee situation, I hope you are one of the lucky ones...keep us posted