In general, early detection and treatment are associated with a better chance of recovery. One reason for this may be that brain development is not complete until about age 20 and the effects of starvation on the developing brain are particularly noxious.
Anorexia Nervosa: Over a 10-year period, about half of those with Anorexia Nervosa recover fully, a small percentage continues to suffer from Anorexia Nervosa, and the rest develop other Eating Disorders. Even among those individuals who recover from an eating disorder, it is common for them to continue to maintain a low body weight and experience depression.
Bulimia Nervosa: More than half of those treated for Bulimia Nervosa have recovered at follow-up.