If she's anything like me, she may just be contrary. I didn't like my friend at work pushing the Zone in my face and, even with her success, still won't touch that plan. I am a strong proponent of Atkins, but only if people ask me first.

Let your buddy know you can go out-just like Jack Spratt and his wife- she can eat no fat, and you can eat no lean-between the two of you, you can lick the platter clean!