Eat a damn sandwich already....
Isn’t there anyone who can just say “here eat this sandwich”
Typically there are plenty of people telling them to eat more. They get off on not eating.
If you go to a doctor for it, the doctor can give you a sandwich, and you should eat it.
The person with anorexia would either refuse to eat the sandwich, pretend to eat the sandwich, or say they were going to eat it and not do it.
Or eat it and then sneak off and throw it up.