IMPORTANT DISCLAIMER: Eating disorders are serious, potentially life-threatening conditions requiring specialized assessment. If you are experiencing an eating disorder, contact the National Alliance for Eating Disorders Helpline: 1-866-662-1235. This article is informational and not medical advice.
Eating disorders and substance use disorders co-occur at substantially elevated rates — research consistently finds that individuals with eating disorders are significantly more likely to have substance use disorders than the general population, and vice versa. Despite this documented overlap, treatment for eating disorders and addiction has historically been siloed — patients often treated for one while the other is inadequately addressed, or referred from one system to the other without integrated care.
Understanding the co-occurrence, when Oceánica’s integrated approach is appropriate, and when eating disorder-specialized programs are needed clarifies the treatment pathway for this complex population.
EATING DISORDER AND ADDICTION CO-OCCURRENCE STATISTICS
The research on eating disorder and addiction co-occurrence is consistent:
- Approximately 50% of people with eating disorders also have a substance use disorder, compared to about 9% of the general population.
- Among people with alcohol use disorder, eating disorder prevalence is significantly elevated.
- People who use substances to suppress appetite, manage weight, or cope with eating-related distress show particularly high rates of co-occurrence.
- The co-occurrence is highest between bulimia nervosa and substance use disorders; anorexia nervosa and substance use disorders also co-occur at elevated but somewhat lower rates.
Shared pathways:
Several mechanisms connect eating disorders and substance use:
- Common neurobiological vulnerability: impulse control difficulties, reward system dysregulation, and emotional regulation deficits appear to create vulnerability to both conditions.
- Shared emotional regulation function: both eating disorder behaviors and substance use often serve to regulate difficult emotional states — anxiety, depression, emptiness.
- Weight control use of substances: stimulants, purging, restriction, and other substances/behaviors used to manage weight create a specific overlap.
- Trauma: both conditions are elevated in trauma survivors, with overlapping pathological responses to trauma.
WHY INTEGRATED CARE MATTERS
Treating addiction without addressing a co-occurring eating disorder — or treating the eating disorder without addressing the addiction — leaves one condition maintaining and likely re-triggering the other.
The mutual maintenance problem:
- Substance use can disinhibit eating disorder behaviors: alcohol disinhibits restriction or binge-purge cycles.
- Eating disorder behaviors can maintain addictive patterns: the restriction-binge cycle produces reward system dysregulation that parallels addiction.
- Emotional states underlying both conditions remain unaddressed if only one is treated.
- Relapse in one condition frequently triggers relapse in the other.
What integrated care provides:
Assessment of both conditions. Understanding the full clinical picture — which condition is primary, how they interact, what they share in terms of emotional drivers, and what distinguishes them — is the starting point.
Coordinated treatment targeting. The therapeutic work addresses the shared emotional drivers (emotional dysregulation, trauma, low self-worth) that maintain both conditions, rather than addressing them as separate and unrelated.
Nutritional care alongside addiction treatment. For patients with active eating disorder behaviors, nutritional assessment and support is part of integrated care.
Body image work. The psychological relationship with body and food is specifically addressed in treatment for co-occurring conditions.
WHERE PRIMARY EATING DISORDER TREATMENT IS NEEDED
Oceánica is honest about the boundaries of its treatment capacity for eating disorders.
When eating disorder-specialized programs are the appropriate primary care:
- Active anorexia nervosa with significantly low body weight or medical instability: This requires a medically intensive eating disorder program with nutritional rehabilitation as the primary clinical priority, not an addiction treatment program with eating disorder support.
- Severe bulimia nervosa as the primary presenting condition: Specialized eating disorder programs have specific protocols for bulimia nervosa that go beyond what general dual diagnosis programs provide.
- Eating disorder presentation requiring daily meal support and nutritional monitoring as a core treatment component.
- Any presentation where the eating disorder is medically acute.
Finding specialized eating disorder programs:
The National Alliance for Eating Disorders Helpline (1-866-662-1235) provides referrals to specialized eating disorder treatment programs. The Alliance for Eating Disorders website (allianceforeatingdisorders.com) has a treatment locator.
OCEÁNICA’S APPROACH TO CO-OCCURRING EATING DISORDERS
When Oceánica treats co-occurring eating disorders:
Oceánica addresses co-occurring eating disorder presentations when the eating disorder is not medically acute and the primary presenting condition falls within Oceánica’s treatment scope (substance use disorder or mood disorder with eating disorder co-occurring).
What Oceánica provides for co-occurring ED:
- Dual diagnosis assessment and treatment planning.
- Individual therapy addressing both addiction and eating disorder dimensions — emotional regulation, self-worth, relationship with food and body.
- Nutritional support and awareness within the program’s meal structure.
- Body image work as a component of individual therapy.
- Referral coordination with eating disorder specialists for aftercare continuity.
What Oceánica refers out:
- Primary anorexia nervosa or severe bulimia nervosa as the primary presenting condition.
- Medically acute eating disorder presentations.
- Eating disorders requiring intensive nutritional rehabilitation as the primary clinical goal.
AFTERCARE COORDINATION
For patients with co-occurring eating disorders who complete treatment at Oceánica, aftercare planning specifically addresses the eating disorder component.
U.S.-based eating disorder aftercare:
Identifying outpatient eating disorder-specialized therapists (registered dietitian with eating disorder specialty, therapist with ED training) before discharge allows continuity of care for the eating disorder component.
Integrated aftercare team:
The optimal aftercare team for co-occurring conditions includes: outpatient therapist (addiction and ED experience), registered dietitian (ED specialty), psychiatrist (medication management), and peer support (AA or ED-specific support groups as appropriate).
FREQUENTLY ASKED QUESTIONS
How common is the co-occurrence of eating disorders and addiction?
Approximately 50% of people with eating disorders also have a substance use disorder — significantly higher than the general population. The co-occurrence is particularly high between bulimia nervosa and substance use disorders.
Does Oceánica treat eating disorders?
Oceánica treats co-occurring eating disorders when the eating disorder is not medically acute and the primary presenting condition (substance use disorder or mood disorder) is within Oceánica’s scope. Primary eating disorder presentations — especially medically acute anorexia or severe bulimia — are referred to specialized eating disorder programs.
Where do I find specialized eating disorder treatment?
National Alliance for Eating Disorders Helpline: 1-866-662-1235. Website: allianceforeatingdisorders.com. These resources provide referrals to specialized eating disorder treatment programs.
Why does treating only addiction without addressing the eating disorder often not work?
Because the two conditions mutually maintain each other — sharing emotional drivers, reinforcing each other’s behaviors, and relapsing together. Integrated care that addresses both produces better outcomes than sequential or siloed treatment.
Recommended Reading
- Dual Diagnosis Rehab in Mexico
- Food Addiction Treatment: Real Disorder or Eating Disorder?
- Mental Health and Addiction Treatment
- Services and Programs at Oceánica
EXTERNAL REFERENCE LINKS
- National Alliance for Eating Disorders Helpline: 1-866-662-1235
- SAMHSA National Helpline
- National Eating Disorders Association (NEDA)
- Oceánica Conecta
Oceánica is a CARF-accredited residential treatment center in Mazatlán, Mexico. For eating disorder support, contact the National Alliance for Eating Disorders Helpline: 1-866-662-1235. This article is informational and not medical advice. Call (213) 527-3377 or visit oceanica-usa.com.
