I have actually heard of this being done by anorexics. Heard it called as chew and spit. They get the taste of the food, but don't get the calories from swallowing the food.

Does she ever talk about weight or her weight? ED's can start at an early age. And now with the media I believe we will see a lot younger kids with ED's.

I would take her to the doctor first thing. And talk to her about her body. Just get an idea of where she's at with her thoughts reguarding it. I hope everything works out for the best.