I would not advice anyone to take on any diet without the aid of a dietician. Most ed's - be in anorexia, bulimia, compulsive over-eating etc, are a lot more complex than just the food. There is always an emotional distress underlying this. I would suggest seeking the help of a counsellor as well. This does not make her any less of a person. It takes someone with strength to go through the counselling process. I know this is not the answer you were hoping for, but it would be foolish of me to suggest any diet without knowing your daughter.

Thank you .... I appreciate your advice and input and you are absolutely right. I will get in touch with a dietician.

Thank you again

Buy the atkins book at any book store and then have your daughter read it and decide for herself if it is the right approach for her.
You cant just put her on a diet. It needs to be her choice and she needs to devote herself to it. No one can do it but her.

Good luck