Classify eating disorder.

Eating disorders are a range of psychological conditions that cause unhealthy eating habits to develop. They might start with an obsession with food, body weight, or body shape. Here are some of the most common types of eating disorders:

1. Anorexia nervosa: This disorder is characterized by an intense fear of gaining weight and a distorted body image which leads to self-imposed starvation and excessive weight loss.

2. Bulimia nervosa: Individuals with this disorder have recurrent episodes of binge eating followed by behaviors to prevent weight gain such as self-induced vomiting, use of laxatives or diuretics, fasting, or excessive exercise.

3. Binge eating disorder: This is characterized by recurrent episodes of eating large quantities of food, often very quickly and to the point of discomfort. It’s often accompanied by feelings of loss of control, shame, or guilt.

4. Orthorexia nervosa: This is an obsession with healthy or “clean” eating. It’s not officially recognized as a distinct eating disorder in the DSM-5.

5. Avoidant/restrictive food intake disorder: This disorder is characterized by a lack of interest in food or avoidance of foods with certain sensory characteristics, without concern for body weight or shape.

6. Pica: This involves eating non-food substances such as dirt or paint. It may be caused by a lack of certain nutrients in the body.

7. Purging disorder: Individuals with this disorder use purging behaviors, like vomiting, laxatives, diuretics, or excessive exercise, to control their weight or shape, but do not binge eat.

8. Night eating syndrome: This is characterized by recurrent episodes of night eating, such as eating after awakening from sleep or excessive food consumption after the evening meal.

9. Atypical anorexia nervosa: This disorder includes all the criteria for anorexia nervosa, but despite significant weight loss, the individual’s weight is within or above the normal range.

10. Unspecified feeding or eating disorder: This category applies to presentations in which symptoms characteristic of a feeding and eating disorder that cause clinically significant distress or impairment in social, occupational, or other important areas of functioning predominate but do not meet the full criteria for any of the disorders in the feeding and eating disorders diagnostic class.

11. Muscle dysmorphia: This is a subtype of body dysmorphic disorder, which is an obsession with the idea that one’s body is not lean and muscular enough.

12. Nocturnal sleep-related eating disorder: This is characterized by recurrent episodes of eating after awakening from sleep.

Each condition involves an extreme focus on issues related to food and eating, and some involve an extreme focus on weight. These disorders can cause serious health consequences and may even result in death if left untreated. Treatment often involves a combination of nutritional counseling, psychotherapy, and medication.