Complex PTSD (C-PTSD) and Eating Disorders: Understanding the Connection
7/1/26 | By: Carissa Hannum
What is Complex PTSD?
Complex Post-Traumatic Stress Disorder (C-PTSD) develops in response to ongoing or repeated traumatic experiences, particularly those that occur within relationships where a person feels trapped, powerless, or unable to escape.
Experiences that may contribute to C-PTSD include childhood abuse or neglect, emotional abuse, domestic violence, chronic bullying, human trafficking, repeated discrimination, or growing up in an unsafe or unpredictable environment.
Because these experiences often occur over time, C-PTSD can affect not only how individuals respond to stress but also how they view themselves, others, and the world around them.
Symptoms of C-PTSD
C-PTSD includes many symptoms associated with PTSD, such as:
Intrusive memories
Flashbacks
Nightmares
Hypervigilance
Difficulty feeling safe
Avoidance of trauma reminders
In addition, individuals with C-PTSD often experience:
Difficulty managing emotions and emotional dysregulation
Negative self image
Shame and guilt
Self blame
Feelings of worthlessness
Dissociation and disconnection from self, others, and the world
Relationship difficulties
Issues with trust, boundaries
Intimacy issues
Fears of abandonment
Other mental health diagnoses such as depression, anxiety, bipolar disorder, ADHD, etc.
The Relationship Between C-PTSD and Eating Disorders
Research and clinical experience consistently show a strong connection between trauma and eating disorders. While not everyone with an eating disorder has experienced trauma, many individuals with eating disorders report histories of chronic stress, abuse, neglect, or relational trauma.
For many individuals, eating disorder behaviors develop as an attempt to cope with emotional pain, regain a sense of control, or manage overwhelming nervous system activation. Eating disorders can serve important psychological functions, even when those behaviors become harmful over time or even harm one’s body.
How C-PTSD Can Contribute to Eating Disorders
Regaining a Sense of Control
One of the core experiences of trauma is feeling powerless.
Individuals who have experienced chronic trauma often report feeling as though they had little control over their environment, relationships, or safety.
Food, weight, exercise, and eating behaviors can sometimes become areas where a person feels they have control. Restriction, binge eating, compulsive exercise, or rigid food rules may create a temporary sense of predictability and stability.
Unfortunately, what begins as an attempt to feel safe can evolve into an eating disorder.
Managing Emotional Dysregulation
As discussed earlier, emotional regulation difficulties are common in C-PTSD.
Many individuals struggle with intense emotions such as:
Anxiety
Fear
Shame
Anger
Loneliness
Grief
Eating disorder behaviors may become coping mechanisms used to manage these emotions.
For example:
Restriction may create feelings of numbness or emotional control.
Binge eating may temporarily soothe distress or overwhelm.
Purging may provide a temporary sense of relief from emotional discomfort.
Excessive exercise may reduce anxiety or help discharge nervous system activation.
While these behaviors may provide short-term relief, they often maintain emotional distress in the long term.
Shame and Negative Self-Beliefs
Individuals with C-PTSD frequently carry deeply ingrained beliefs about themselves.
Common thoughts may include:
"I am not good enough."
"I am broken."
"I do not deserve care."
"My needs do not matter."
These beliefs can contribute to body dissatisfaction, perfectionism, self-punishment, and eating disorder behaviors. For some individuals, the eating disorder becomes another way these negative beliefs are reinforced.
Difficulty Identifying Needs
Many survivors of complex trauma learned early in life to focus on the needs of others rather than their own.
Over time, this can create difficulty recognizing:
Hunger
Fullness
Fatigue
Emotional needs
Physical discomfort
When individuals become disconnected from their internal experiences, eating regularly and responding to bodily needs can become significantly more challenging.
Dissociation and Body Disconnection
Many individuals with C-PTSD report feeling disconnected from their bodies.
For some, this disconnect develops because the body becomes associated with danger, vulnerability, or painful memories.
Eating disorders can sometimes intensify this disconnection. Rather than helping individuals reconnect with their bodies, eating disorder symptoms often create additional distance from physical sensations and internal experiences. However, in the moment, the eating disorder allows individuals to feel more in control of themselves and their trauma although it may be causes more disconnection in the long run
Trauma and Different Types of Eating Disorders
Complex trauma can contribute to the development of many different eating disorders.
Anorexia Nervosa
Individuals with anorexia may use restriction as a way to create control, reduce emotional overwhelm, or disconnect from painful feelings. Perfectionism, self-criticism, and rigid thinking patterns that often accompany trauma can also reinforce restrictive behaviors.
Bulimia Nervosa
For some individuals, binge eating and purging become ways of coping with intense emotions.The cycle may temporarily provide relief from anxiety, shame, sadness, or anger before those emotions return.
Binge Eating Disorder
Binge eating may function as a form of self-soothing or emotional escape. Food can provide temporary comfort during periods of distress, loneliness, or emotional activation.
Avoidant/Restrictive Food Intake Disorder (ARFID)
Trauma can sometimes contribute to heightened anxiety around food, bodily sensations, choking, vomiting, or gastrointestinal discomfort. In some cases, traumatic experiences involving food, illness, or medical procedures may influence restrictive eating patterns.
Treatment Considerations
When an eating disorder and C-PTSD occur together, treating only the eating disorder symptoms may not be enough. Many individuals find that eating disorder behaviors return when the underlying trauma remains unaddressed.
A comprehensive treatment approach often includes:
Eating disorder therapy
Trauma-informed psychotherapy
Nutritional counseling
Psychiatric support when appropriate
Skills for emotional regulation
Nervous system regulation strategies
Attachment-focused work
Supportive group therapy
Approaches such as EMDR, Cognitive Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), Internal Family Systems (IFS), and somatic therapies may be helpful depending on the individual's needs.
Treatment should move at a pace that feels safe and supportive. Addressing trauma too quickly can feel overwhelming, while focusing only on food behaviors may miss important underlying factors contributing to the eating disorder.
Recovery is Possible
Many individuals living with both C-PTSD and an eating disorder spend years wondering why recovery feels so difficult. The reality is that eating disorder behaviors often developed for a reason. They may have helped someone survive overwhelming emotions, create a sense of control, or cope with experiences that felt impossible to manage at the time. Understanding the connection between trauma and eating disorders can be an important step toward healing.
Recovery is not about taking away coping mechanisms without replacing them. It involves building new ways to regulate emotions, develop self-compassion, establish safety, and reconnect with the body. Healing from both C-PTSD and an eating disorder is possible. With the right support, individuals can learn that they are more than their trauma, more than their eating disorder, and deserving of a life defined by connection, flexibility, and self-trust.
Reach Out
If you are struggling with the effects of complex trauma, an eating disorder, or both, you do not have to navigate recovery alone.
Working with a trauma-informed treatment team that understands the connection between eating disorders and C-PTSD can provide support, validation, and effective tools for healing. Recovery is possible, and help is available.
If you’re considering professional support, we’re here to help. Please reach out to schedule a free, no-commitment consultation. There’s no fee and no obligation—just click the button below to get started.
You can also call or text us at 202-656-3681, or email us directly. Give yourself the opportunity for the support you deserve.