Which medical term describes an eating disorder in which energy expenditure is restricted below requirements, leading to significant weight loss?

Correct option is C

The correct answer is (c) Anorexia Nervosa

Explanation:

• Anorexia Nervosa is a serious psychological and eating disorder.

• It involves restriction of energy intake below body requirements.

• This leads to significantly low body weight and malnutrition.

• Individuals often have a distorted body image and intense fear of weight gain.

• They may also use methods like excessive exercise or starvation to lose weight.

Information Booster:

• Anorexia Nervosa is listed in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5).

• It has the highest mortality rate among psychiatric disorders due to medical complications and suicide.

Additional Knowledge:

Bulimia Nervosa (Option a)

• Involves binge eating followed by purging (vomiting, laxatives, or exercise).

• Body weight is usually normal or above normal.

• Driven by body image concerns but does not involve severe energy restriction.

Diabulimia Nervosa (Option b)

• Occurs in Type 1 diabetics who skip insulin to lose weight.

• It is not an official DSM-5 diagnosis.

• Dangerous due to uncontrolled blood sugar and risk of diabetic ketoacidosis.

Orthorexia Nervosa (Option d)

• Obsession with eating "pure" or "clean" food.

• Not officially classified as an eating disorder.

• May lead to nutritional deficiencies but is driven by food quality concerns, not weight loss.