Depression can develop into an eating disorder,
said Carolyn Weiss, an advanced practice registered nurse at the Suburban Center for Eating Disorders and Adolescent Obesity in Bethesda, which is affiliated with Suburban Hospital. Many people with eating disorders experience depression, anxiety, substance abuse and childhood sexual abuse, according to the Women’s Health Office with the U.S. Department of Health and Human Services.
‘‘It messes with your appetite and your perception,� she said of depression. ‘‘And your perception of yourself.�
please look into the following link about eating disorders, when depression makes you not want to eat anymore, its time to look further into whats bothering you, and the issues around it..
http://www.mirror-mirror.org/ed.htm
A person can go three weeks without any food and survive without any long term ill effects.
The duration of survival without food is greatly influenced by factors such as body weight, genetic variation, other health considerations and, most importantly, the presence or absence of dehydration.
Medical practitioners encounter cases of near-total starvation in patients suffering from, among other conditions, anorexia nervosa and end-stage malignancies, as well as in those following so-called starvation diets. In anorexia, death from organ failure or myocardial infarction is fairly common (up to 20 percent of cases end this way) and tends to happen when body weight has fallen to between 60 and 80 pounds (although it can occur at any time). This weight typically corresponds to a body mass index (BMI) approximately half of normal, or about 12 to 12.5. (Normal BMI is 18.5-24.9, and most fashion models have a BMI of around 17.)