Disordered Eating is different from Eating Disorders. While eating disorders are psychological illnesses characterized by pathological eating behaviors that negatively impact health (think Anorexia Nervosa and Bulimia Nervosa).

Disordered Eating describes a range of eating behaviors that are “subclinical” (i.e. not diagnosable as eating disorders) but may negatively impact health and result in energy deficiency (the main cause of the Triad!)

Purposeful restriction of caloric intake of varying intensity

Disordered Eating (Mild/Moderate)

  • Restrictive food intake
  • High drive for thinness

Eating Disorder (Severe)

  • Anorexia Nervosa

Inadvertent undereating (not realizing you are not eating enough calories)


  • Not eating after exercise
  • Skipping or missing meals
  • Not eating when you are hungry