Thank you for using JustAnswer.com. I am so sorry to hear your friend is going through this. It's really hard to watch some one get worse and worse and not seek help. It sounds like you have tried most every tactic to convince her to get help. At this point, I would suggest not discussing the topic anymore unless she asks for help.
You can continue to help in a few ways. Become very educated about the disease. Learn about the emotional and psychological pieces associated with this illness. Knowledge is very helpful to teach you how to not enable her eating disorder. Know the available resources in your area incase she says, Okay, I want help.
I would suggest avoiding talking about her food or weight. For an anorexic, it's almost like fuel when she hears how thin she looks or when people point out how little she is eating. It sort of encourages her to keep doing what she's doing.
Lastly, try to be empathetic without preaching or asking them to get help. Be a good listener, put it out there that you are ready to help her get help when she is and leave it at that.
I hope this answer helps. I wish there were an easier way to help her see what she's doing to herself and family. Eating disorders are riddled with denial, and it's hard for the person to want to change until there are serious consequences.
I hope this answer helps. Please let me know if you have further questions or if you need clarification about this answer.
All the best,
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