I'm clueless, but I'm wondering if it's a psychological or physical reaction to eating meat when she's not used to it. If so (and since you plan to go back to vegetarianism soon), perhaps she should attempt this transition soon. Though it takes some creativity, I think there are numerous people doing a vegetarian low carb on this forum. Good luck with it... seems hard to me.

Of course, her generally gross feeling could be a lack of supplementation. What kinds of vitamins are you taking? A good potassium supplement (as well as calcium and magnesium) can take away some of the Induction "blahs". Your body loses a lot of these minerals during all the water and weight loss.

That's just my two cents. I hope she starts feeling better soon.