A DEEPER UNDERSTANDING OF Eating DISORDERS

 Anorexia Nervosa is a severe psychiatric disorder characterised by extreme restriction of food intake and a preoccupation with body shape or weight. Individuals with anorexia nervosa have a distorted body image and an intense fear of gaining weight, leading to persistent efforts to restrict their food intake. Anorexia Nervosa is associated with a myriad of medical complications and psychological comorbidities. It has one of the highest mortality rates of any psychiatric disorder, making early diagnosis and treatment crucial. 

Bulimia Nervosa is an eating disorder characterised by recurrent episodes of binge eating followed by compensatory behaviours to avoid weight gain, such as self-induced vomiting, excessive exercise, or the misuse of laxatives. Individuals with bulimia nervosa often have an excessive preoccupation with body weight and shape, leading to a cycle of secretive bingeing and purging. The disorder can have serious physical and psychological consequences, including electrolyte imbalances, gastrointestinal problems, tooth enamel erosion, and depression. It commonly affects adolescent and young adult females, but it can occur in males as well.

  Binge Eating Disorder (BED) is an eating disorder characterised by recurrent episodes of eating large amounts of food in a short period of time, accompanied by a feeling of loss of control. Individuals with BED often engage in binge eating without engaging in any compensatory behaviours, such as purging or excessive exercise. BED can lead to significant psychological distress and can have detrimental effects on both physical and mental health. It is associated with obesity, an increased risk of developing chronic diseases such as diabetes, hypertension, and heart disease.

  Avoidant Restrictive Food Intake Disorder (ARFID) is a recently recognised eating disorder characterised by significant limitations in food intake, leading to malnutrition, weight loss, or nutritional deficiency, without the concurrent body image disturbances characteristic of anorexia nervosa and bulimia nervosa. ARFID was established as a distinct entity by the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-V) within the spectrum of feeding and eating disorders. According to the DSM-5 criteria, to be diagnosed with ARFID, an individual must exhibit problematic eating habits, which may be due to an inability to tolerate certain food textures, colours, smells, or taste, or a lack of interest in eating or food. This can result in significant weight loss, nutrient deficiencies, and impaired psychosocial functioning.

Other Specified Feeding and Eating Disorder (OSFED) was previously known as Eating Disorder Not Otherwise Specified (EDNOS) in past editions of the Diagnostic and Statistical Manual. Despite being considered a ‘catch-all’ classification that was sometimes denied insurance coverage for treatment due to being seen as less serious, OSFED is a distinct category within the spectrum of feeding and eating disorders. Individuals with OSFED do not meet the full criteria for specific eating disorders such as anorexia nervosa, bulimia nervosa, or binge eating disorder, but still exhibit clinically significant disturbances in their eating behaviours. This can include but is not limited to episodes of binge eating, purging behaviours, or restrictive eating patterns that do not fit the criteria for other diagnoses. It is essential for healthcare professionals to recognise and diagnose OSFED, as it can still have serious physical and psychological consequences.