Eating disorders are biologically based mental illnesses that are influenced by an individual’s environment, society, and psychological makeup. An eating disorder is an illness that causes an individual to experience disturbances in their eating habits and negative food or body-related thoughts and feelings. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) recognizes five kinds of eating disorders:
Anorexia Nervosa. Anorexia is characterized by extended and extreme food restriction and malnourishment that causes dramatic and sustained weight loss. Anorexia often presents with a fear of gaining weight and other body image issues.
Avoidant Restrictive Food Intake Disorder (ARFID). ARFID is a feeding or eating disorder typically driven by fear, a lack of interest in food, or an avoidance of certain foods, resulting in continued failure to meet an individual’s nutritional needs. ARFID often presents without a drive for thinness.