|  | Conditions & Treatments | Anorexia

Anorexia Nervosa: Serious Health Risks & the Importance of Professional Help

Anorexia Nervosa Is Not a Weight-Loss Method

Anorexia nervosa is a severe, potentially fatal eating disorder characterized by restriction of energy intake, intense fear of gaining weight, and disturbance in body image. It is not a choice or a diet—it is a complex biopsychosocial illness.

Diagnostic Hallmarks (DSM-5)

  • Restriction leading to significantly low body weight (context: age, sex, trajectory)
  • Intense fear of weight gain / persistent behavior interfering with weight gain
  • Disturbance in body weight/shape perception; undue influence on self-evaluation
  • Subtypes: Restricting type vs. Binge-eating/purging type

Medical Complications (Systemic)

SystemComplications
CardiovascularBradycardia, hypotension, orthostasis, arrhythmias (QT prolongation), cardiomyopathy, sudden cardiac death
EndocrineAmenorrhea (hypogonadotropic), low estrogen/testosterone → osteoporosis, thyroid suppression (low T3 syndrome), cortisol dysregulation
GastrointestinalGastroparesis, constipation, superior mesenteric artery syndrome, hepatic steatosis, pancreatitis (refeeding)
Renal/ElectrolyteHypokalemia, hyponatremia, hypophosphatemia, renal impairment, dehydration
HematologicAnemia, leukopenia, thrombocytopenia (marrow suppression)
NeurologicBrain volume loss (reversible partially), cognitive impairment, peripheral neuropathy, seizures (electrolyte)
DermatologicLanugo, dry skin, acrocyanosis, hair loss, poor wound healing

Psychiatric Comorbidities

  • Major depressive disorder, anxiety disorders, OCD, substance use, personality disorders
  • Suicide risk elevated (standardized mortality ratio ~5–10× general population)

Evidence-Based Treatment

  • Family-Based Treatment (FBT / Maudsley): First-line for adolescents; parents manage refeeding
  • Enhanced CBT (CBT-E): First-line for adults; addresses cognitive distortions, behavioral change
  • Specialist Supportive Clinical Management (SSCM), MANTRA, FPT: Alternatives
  • Medical stabilization: Inpatient for BMI <15, severe electrolyte abnormalities, cardiac instability, suicide risk
  • Refeeding protocol: Phosphate monitoring, thiamine, slow caloric advancement to avoid refeeding syndrome
  • Medications: No FDA-approved drug for core AN; olanzapine sometimes used off-label for anxiety/rigidity; SSRIs not effective at low weight

Recovery Is Possible

Early intervention improves prognosis. Multidisciplinary team (physician, therapist, dietitian, psychiatrist) is essential. If you or someone you know is struggling, contact:

  • National Eating Disorders Association (NEDA): 1-800-931-2237
  • National Association of Anorexia Nervosa and Associated Disorders (ANAD)
  • Local eating disorder specialists

Anorexia has the highest mortality of any psychiatric disorder. Professional treatment saves lives.

Anorexia - Related Articles