A feeding tube could be the future..
Anorexia nervosa is an eating disorder characterized by refusal to maintain a healthy body weight and an obsessive fear of gaining weight. It is often coupled with a distorted self image which may be maintained by various cognitive biases that alter how the affected individual evaluates and thinks about her or his body, food and eating. Persons with anorexia nervosa continue to feel hunger, but deny themselves all but very small quantities of food.
The average caloric intake of a person with anorexia nervosa is 600-800 calories per day, but there are extreme cases of complete self-starvation. It is a serious mental illness with a high incidence of comorbidity and the highest mortality rate of any psychiatric disorder. Girls with anorexia are at risk for a number of serious health problems, including osteoporosis (bone loss), kidney disease, liver disease, heart failure, and even death. Anorexic girls are often not aware of the serious risks posed by their condition and may not seek the treatment they need.