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Eating Disorder Facts
Understanding

OSFED (Other Specified Feeding or Eating Disorders)

OSFED is a catch-all category for eating disorders that cause significant distress and impairment but do not meet the strict diagnostic criteria for anorexia, bulimia, or BED. OSFED is the most commonly diagnosed eating disorder and is just as dangerous.

Also known as: EDNOS (previous name), Other Specified Feeding or Eating Disorder

Most commonly diagnosed eating disorder category — affects an estimated 4.78% of women and 2.22% of men

OSFED replaced the older term EDNOS (Eating Disorder Not Otherwise Specified) in the DSM-5. Far from being a "lesser" diagnosis, OSFED carries the same risks of medical complications and mortality as other eating disorders.

OSFED includes several named presentations:

  • Atypical Anorexia Nervosa: Meets all criteria for anorexia except the individual's weight is within or above the normal range despite significant weight loss.
  • Bulimia Nervosa (of low frequency or limited duration): Binge-purge behavior that occurs less frequently or for a shorter duration than required for a full bulimia diagnosis.
  • Binge Eating Disorder (of low frequency or limited duration): Binge eating episodes that occur less frequently than required for a full BED diagnosis.
  • Purging Disorder: Recurrent purging behavior (vomiting, laxatives, diuretics) to influence weight or shape without binge eating.
  • Night Eating Syndrome: Recurrent episodes of night eating — eating after awakening from sleep or excessive food consumption after the evening meal.
Recognize

Signs & Symptoms

Symptoms of anorexia, bulimia, or BED that don't meet full diagnostic criteria
Significant weight loss without being medically underweight (atypical anorexia)
Purging behaviors without binge eating episodes
Recurrent night eating — waking up to eat or eating excessively after dinner
Preoccupation with food, weight, shape, or calories
Distress about eating behaviors
Frequent dieting or food restriction
Withdrawal from social activities, especially those involving food
Changes in mood, anxiety, or depression related to eating
Medical symptoms like fatigue, dizziness, gastrointestinal problems
Understand

Causes & Risk Factors

No single cause has been identified. Eating disorders arise from a complex interplay of genetic, biological, behavioral, psychological, and social factors.

Same risk factors as other eating disorders — genetic, biological, psychological, and social
History of dieting or food restriction
Body dissatisfaction and internalized weight stigma
Perfectionism and high-achieving personality traits
Trauma history, particularly childhood adversity
Co-occurring mental health conditions (anxiety, depression, OCD)
Cultural and social pressure around body appearance
Life transitions or periods of stress
Health Impact

Health Consequences

Eating disorders have serious medical consequences and can be life-threatening if untreated.

  • All medical complications associated with anorexia, bulimia, or BED depending on presentation
  • Electrolyte imbalances and cardiac complications from purging
  • Nutritional deficiencies and malnutrition even at normal or higher weight
  • Gastrointestinal problems
  • Bone density loss
  • Hormonal disruptions
  • Dental problems from purging
  • Depression, anxiety, and suicidal ideation
  • Equal mortality risk to other eating disorders
Healing

Treatment Approaches

01 Treatment is tailored to the specific OSFED presentation — the same evidence-based approaches used for anorexia, bulimia, and BED are applied
02 Cognitive Behavioral Therapy (CBT) — adapted for the specific eating disorder behaviors present
03 Family-Based Treatment (FBT) for adolescents
04 Nutritional counseling and meal support
05 Medical monitoring for complications specific to the presentation
06 Medication when appropriate for co-occurring conditions
07 Group therapy and support groups
08 Weight-inclusive, Health at Every Size (HAES)-informed approaches when appropriate

There is hope

Recovery is possible with the right help.

Talk to a professional who specializes in eating disorder treatment.

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FAQ

Frequently Asked Questions