**Core Concept**
Binge eating disorder is a serious eating disorder characterized by recurrent episodes of eating large quantities of food in a short period, often accompanied by feelings of guilt, shame, and loss of control. It is a complex disorder involving psychological, physiological, and environmental factors.

**Why the Correct Answer is Right**
Binge eating disorder is marked by recurring episodes of binge eating, which is defined as consuming a large amount of food (usually within a 2-hour period) in the absence of other eating disorders like bulimia nervosa. This behavior is often associated with emotional distress, feelings of guilt, and self-criticism. The pathophysiology of binge eating disorder is thought to involve an interplay of genetic, neurobiological, and environmental factors, including abnormalities in the brain's reward system and stress response.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not accurately describe the key feature of binge eating disorder, which is the recurrent episodes of binge eating.
**Option B:** This option is incorrect because it is more characteristic of bulimia nervosa, which involves recurrent episodes of binge eating followed by compensatory behaviors such as self-induced vomiting or laxatives.
**Option C:** This option is incorrect because it is more characteristic of anorexia nervosa, which involves restrictive eating patterns and fear of gaining weight.

**Clinical Pearl / High-Yield Fact**
A key clinical feature of binge eating disorder is the presence of feelings of guilt, shame, and self-criticism after binge eating episodes. This emotional response can lead to a cycle of binge eating and self-criticism, making it more challenging to treat.

**Correct Answer: D. Binge eating disorder is characterized by recurrent episodes of eating large quantities of food in a short period, often accompanied by feelings of guilt, shame, and loss of control.**