Hi,
The trouble with Anorexia is that it is an OCD and anxiey disorder rolled in to one and in my view should be treated as a personality disorder not necessarily as a mental illness. If you refer to the link below you will realise that it is practically verging on a phobia. So it should really be called an environmentally induced personality disorder or E.I.P.D?
The second problem, if you accept my opinion above, is how do you help the sufferers?
Well the first thing that you should do is learn as much about the condition as you can,know more about it than she does. So lets start there.
http://www.helpguide.org/mental/anorexi ... atment.htm
Take a look at this site, one of the better ones out of the library that i have, and see where you can fit in. The second step is to get her to realise that she has a problem and what will happen if she doesn't see the damage that she is doing, she does but it maybe hidden so far in her sub-conscious it may take a while for you to get her to see it.
The bottom line is that she will be in serious denial, but if you can read any signs that she may offer that she does want to be helped then you will need to be ready to act. The fact that you are a bloke actually gives you an advantage. We are designed as pattern watching machines; she will say the same type of things and have similar behaviours that are repeated that will tell you what she is really feeling. The one thing that she needs now is a friend. And if you can try and get close to the family then you will have access to real time info, and if that can lead to you becoming more involved with her getting help from a GP then that will bode well, and if you need any further advice then you know where i am.
Kind regards