Eating Disorders: Types, Causes, and Treatment Methods

Although nutrition plays a central role in sustaining life, it also serves as a source of motivation for many behaviors, sometimes implicitly and sometimes explicitly. When we consider the efforts of early humans—who spent most of their days hunting and gathering in order to survive—it becomes striking that today, despite the increased accessibility of food and the absence of fear regarding daily calorie intake, there has been no noticeable reduction in people’s preoccupation with food consumption. This situation can be explained by the transformation of modern individuals’ perspectives on nutrition and the meanings attached to eating. People may attribute emotional and social meanings to food intake, and these meanings contribute to the emergence of eating disorders, which can be considered one of the consequences of modernity.

An eating disorder is a psychological condition characterized by disturbances in eating behaviors that occur for various reasons. The most well-known types are anorexia nervosa and bulimia nervosa. Eating disorders generally emerge during adolescence and young adulthood and are observed approximately ten times more frequently in women than in men.

There is no single factor responsible for the development of eating disorders. Physiological, genetic, cultural, familial, and individual factors may all contribute to the onset of the disorder. For example, research examining genetic influences has shown that if one family member has an eating disorder, the likelihood of other family members developing the disorder also increases. In addition, researchers suggest that the emergence of these disorders during adolescence may be linked to changes in brain development. Furthermore, eating disorders such as anorexia nervosa are more commonly observed in cultures where being “thin” is considered ideal.

Perfectionism is one of the most common personality traits observed in individuals with eating disorders. This is thought to be related to family dynamics. When examining the family structures of individuals with eating disorders, overly controlling, perfectionistic, and restrictive family environments are frequently observed. As a result, individuals may attempt to establish control over their own bodies through excessively restrictive eating behaviors because they feel unable to gain control over other areas of their lives. Additionally, high expectations within the family or family members’ own efforts to control their bodies may contribute to the development of negative body image and body image distortion.

Anorexia Nervosa

Anorexia Nervosa is defined as an intense fear of gaining weight accompanied by extreme control over food intake. Because individuals with this disorder experience distorted body image, they tend to perceive themselves as overweight even when their body weight is dangerously low. People with anorexia nervosa may significantly restrict their food intake, reduce portion sizes, or avoid eating for long periods due to fear of gaining weight. In addition to restrictive dieting, they may engage in excessive exercise or use medications such as laxatives and diuretics to prevent weight gain or promote weight loss.

The physiological effects of this disorder may include extremely low body weight, weakened hair and nails, dry and pale skin, constipation, and low body temperature.

Bulimia Nervosa

Bulimia Nervosa is characterized by recurrent episodes of uncontrollable overeating followed by compensatory behaviors such as vomiting, medication misuse, fasting, or excessive exercise due to guilt, loss of control, or fear of gaining weight. Unlike anorexia nervosa, individuals with bulimia nervosa generally maintain a body weight within the normal range.

Individuals with bulimia nervosa often engage in binge eating in response to emotional states such as feelings of worthlessness or anger, and afterward experience guilt and shame that lead to compensatory behaviors. However, these compensatory behaviors may trigger similar negative emotions again, causing the individual to become trapped in a cycle they struggle to control. Therefore, therapy primarily aims to identify the underlying causes that trigger binge eating behaviors in order to support recovery.

The physiological effects of bulimia nervosa may include heart problems related to medication misuse, low blood pressure, damage to the esophagus due to vomiting, erosion of tooth enamel, tooth decay, swelling of the salivary glands, and redness around the eyes.

Individuals with eating disorders often show resistance to acknowledging their illness and seeking therapy. As a result, these disorders may lead to death in approximately 10–15% of cases. Since eating disorders carry a high risk of relapse, treatment is recommended to be conducted through a multidisciplinary team approach involving dietitians, psychologists, and other healthcare professionals.

Initially, depending on the patient’s condition, a decision is made regarding outpatient or inpatient treatment. In hospitalization processes, the primary goal is to restore the patient’s weight and physical health indicators to normal levels. Later, during outpatient treatment—especially for adolescents—family therapy is recommended alongside individual therapy in order to improve relationships and minimize the likelihood of relapse.