Eating Disorders and Addiction: How These Conditions Intersect

When a person is struggling with both an eating disorder and a substance use disorder, treatment becomes significantly more complex—and more critical. These conditions frequently co-occur, creating a web of physical, emotional, and psychological challenges that cannot be addressed in isolation.

At SunCloud Health, we specialize in treating individuals with complex co-occurring disorders through fully integrated care. This post explores how eating disorders and addiction intersect, and why comprehensive, evidence-based treatment is essential for long-term healing.

A Closer Look at the Connection

Research shows that up to 50% of individuals with eating disorders also struggle with substance use disorders. While each person’s story is unique, several key factors often link the two:

  • Shared Risk Factors Both disorders are influenced by trauma, genetic predispositions, anxiety, depression, and difficulties with emotion regulation.
  • Similar Psychological Functions Disordered eating and substance use can both serve as ways to cope with overwhelming emotions, numb pain, or gain a sense of control.
  • Cultural Pressures and Stigma Societal ideals around thinness, success, and productivity can drive individuals toward both restrictive eating and substance misuse.

How These Disorders Reinforce Each Other

When eating disorders and addiction co-occur, each condition can exacerbate the other in harmful ways:

  • Nutritional Deficiencies and Substance Use Malnourishment caused by disordered eating can heighten the effects of substances, increasing risk for overdose or dangerous reactions.
  • Cycle of Secrecy and Shame Individuals may hide one or both disorders due to fear, stigma, or guilt, making it harder to seek help and easier to fall deeper into harmful patterns.
  • Dual Withdrawal and Medical Risk Detoxing from substances while the body is also undernourished can lead to serious medical complications if not carefully managed in a professional treatment setting.

Why Integrated Treatment Is Essential

Treating one disorder while ignoring the other is rarely effective—and can even be dangerous. At SunCloud Health, we recognize the importance of addressing all aspects of a person’s experience, including:

  • Medical stabilization with support for both substance use and nutritional rehabilitation
  • Individual and group therapy that addresses the root causes of both disorders
  • Family programming to help rebuild support systems and improve communication
  • Holistic support through mindfulness, experiential therapies, and trauma-informed care
  • Continuing care and aftercare planning to support long-term recovery and prevent relapse

We do not silo treatment. Instead, our integrated, team-based approach supports each patient in understanding how their mental health, behaviors, and identities are connected—and how healing in one area often supports healing in others.

The Integrated SunCloud Approach to Dual Diagnosis

Our team is deeply experienced in working with individuals who carry multiple diagnoses. Our clinical model is designed for complexity: many of our patients have struggled with previous attempts at treatment that failed to consider the full scope of their needs.

We believe recovery is not just about eliminating symptoms—it’s about helping individuals reclaim their lives, relationships, and sense of self.

If You or a Loved One Is Struggling

Eating disorders and addiction are treatable—even when they occur together. If you or someone you love is navigating the pain of these intersecting disorders, know that you are not alone.

SunCloud Health offers residential, Partial Hospitalization (PHP), and Intensive Outpatient Programs (IOP) in a supportive, inclusive, and trauma-informed environment.

Contact us today to learn more about how we can help. Your path to integrated healing starts here.

-Our Research Team-
Timothy D. Brewerton, MD, DLFAPA, FAED, DFAACAP, CEDS-S
Professor Emeritus of Psychiatry and Behavioral Sciences
Dr. Christopher Womack
Medical Director, Child and Adolescent Psychiatry

Dr. Christopher Womack joins SunCloud as our Medical Director, Child and Adolescent Psychiatry.

Dr. Womack is board certified in Adult as well as Child and Adolescent Psychiatry, attending the University of Chicago Pritzker School of Medicine. Adult psychiatry residency and child fellowship training were completed at the University of Chicago Medical Center.

Dr. Womack’s treatment  philosophy hinges on strength based, evidence informed care, where collaboration is central to guiding individualized treatment.  He has experience caring for children and teens from varied backgrounds, appreciating the importance of how identity can inform treatment.

Favorite pastimes are cooking new recipes and exploring Chicago’s rich cultural diversity through its neighborhood and fine dining experiences.

Elizabeth E. Sita, MD
Medical Director of Adult Services

Dr. Elizabeth E. Sita, MD, is a Board Certified psychiatrist specializing in the care of patients with eating disorders. She completed her undergraduate training at the University of Chicago and graduated with Highest Honors. She then earned her medical degree at Northwestern University Feinberg School of Medicine and was recognized with the Chairman’s Award for Excellence in Psychiatry. She subsequently completed residency with the Department of Psychiatry and Behavioral Sciences at McGaw Medical Center of Northwestern University, where she was elected Chief Resident and received the Resident Psychiatrist Leadership & Service Award.

Upon completing her training, Dr. Sita joined the staff atAscension Alexian Brothers Behavioral Health Hospital Hospital, where she served as Assistant Medical Director of the Center for Eating Disorders and Director of Transcranial Magnetic Stimulation Services before transitioning to lead the new inpatient eating disorder unit as Medical Director of Eating Disorder Services at Ascension Saint Joseph Hospital – Chicago. In these roles, she has cared for a multitude of adolescents and adults struggling with anorexia nervosa, bulimia nervosa, binge eating disorder, and other eating disorders as well as severe, cooccurring mood, trauma, personality, and substance use disorders.

Dr. Sita has been recognized throughout her training and practice for a commitment to excellence in patient care and for her ability to engage patients in their most challenging moments. Her passions include the care of treatment-resistant eating and mood disorders as well as questions of medical capacity and end-of-life decision making.

She believes that, first and foremost, human connection is key to mental health and well-being and strives to share this philosophy in each and every patient encounter. She is excited to bring her expertise to SunCloud Health as the Medical Director of Adult Services!

VIDEO: Meet Elizabeth E. Sita, MD, Medical Director of Adult Services

Lacey Lemke, PsyD
Assistant Vice President of Clinical Services

Dr. Lacey Lemke (she/her) is a licensed clinical health psychologist with specialized expertise in the treatment of eating disorders and the practice of medical and health psychology. She completed her doctoral training in clinical psychology with a Primary Care emphasis at the Adler School of Professional Psychology. Dr. Lemke went on to complete both her predoctoral clinical internship and postdoctoral fellowship through Ascension Health, where she gained advanced training working with individuals experiencing eating disorders and self-injurious behaviors, as well as within pediatric subspecialty settings including endocrinology, neurology, and adolescent medicine.

Dr. Lemke is deeply committed to providing evidence-based, compassionate care and collaborates closely with interdisciplinary teams to ensure comprehensive treatment. Her professional mission is to support patients in achieving their fullest potential by guiding them to the most appropriate level of care and empowering them to make meaningful, sustainable progress toward improved health and well-being.

VIDEO: 2. Meet Lacey Lemke, PsyD.

https://youtu.be/iKQeU9s5U2k?rel=o