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Diabulimia causes: environmental and biological factors

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Diabulimia is a complex eating disorder that involves the deliberate underuse or restriction of insulin in those with Type I diabetes as an attempt to control their weight. As is true for all eating disorders, diabulimia doesn’t have a single cause. The interaction of several biological, psychological, and social factors may contribute to the development of diabulimia. (1) The key risk factors for developing an eating disorder include weight gain, a history of dieting and restrictive eating, family dysfunction, and low self-esteem. (2) Having a Type 1 diabetes diagnosis complicates an eating disorder, as the management of diabetes heavily focuses on food.

Last updated on 
October 27, 2022
In this article

Biological factors of diabulimia

Type I diabetes diagnosis

Compared to non-diabetic individuals, those with Type I diabetes are at a much higher risk of developing disordered eating behaviors, as well as eating disorders associated with poor glycemic control. (2)

Research suggests that between 11.5% and 27.5% of adolescents suffering from Type 1 diabetes also meet the diagnostic criteria for an eating disorder, most commonly binge eating disorder (BED) or bulimia nervosa (BN). (3) But the disorder can also affect older individuals.

The aspects of diabetes management, such as a strong focus on glucose numbers, food label reading, carbohydrate counting, meal planning, food restriction, and food rules, can also increase the risk of developing diabulimia or another eating disorder. (4)

Anxiety and/or depression diagnosis

Those with depression or anxiety often turn to unhelpful behaviors to cope with their feelings. Some of these behaviors are maladaptive, like disordered eating behaviors, including bingeing and purging. (5)

Mental health disorders, like depression and anxiety, can also affect appetite, which can lead to disordered relationships with food and insulin administration.

Being female

Up to 30% of women with Type I diabetes exhibit behaviors associated with diabulimia, typically between ages 15-30. (4) But diabulimia can affect boys, too, although less research has been conducted with boys.

Family history of eating disorders

A person is more likely to develop an eating disorder, including diabulimia, if a family member has issues around food or dieting, or has had an eating disorder. (6) 

Part of this increased risk can be attributed to observed behaviors, such as witnessing a family member dieting, restricting food, or even purging. However, research--primarily twin studies--has shown there is also a genetic link to eating disorders. One study discovered that roughly 40% to 60% of the risk of developing anorexia nervosa (AN), bulimia nervosa (BN), and binge eating disorder (BED) is from genetic influence. (7)

Weight gain due to insulin injections

There is a tendency for weight gain when starting insulin therapy, particularly among adolescents. At this age, this change can be both physically and emotionally difficult. For many, the anxiety of weight gain is so extreme it leads to reducing or omitting the quantity of insulin they administer. (1)

Some people with Type I diabetes believe they will be able to manipulate their insulin administration to lose the weight they’ve gained.

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Environmental factors of diabulimia


Diabetes distress

Some people with Type I diabetes expect to completely control and manage their blood sugar, and see it as a personal failure if they can’t. If blood sugar is high, they see it as a lack of control over themselves and their eating. (8) This can lead to some individuals trying to gain back control in maladaptive ways, such as omitting insulin to gain control of their weight.

However, in reality, blood sugar is influenced by a myriad of factors. Therefore, even when insulin is administered correctly, blood sugar may be out of range.

Furthermore, some individuals with diabetes develop a mistrust of their body cues, such as their satiety or hunger. Or they may have had instances of hyperglycemia or hypoglycemia, leading to attempts to control their blood sugar through over- or undereating.

These various stressors specific to those living with diabetes can contribute to the development of an eating disorder. (8)

History of trauma

Childhood trauma or life-altering events can increase the risk of the development of an eating disorder. (6) Research has found rates of eating disorders are significantly higher in those who have experienced trauma and/or post-traumatic stress disorder (PTSD). (9) 

Many types of trauma have been associated with an eating disorder, including but not limited to:

  • Emotional and physical neglect
  • Sexual assault and/or sexual harassment
  • Food deprivation
  • Emotional abuse
  • Alcoholism, addiction, and/or conflict within the home
  • Death of a loved one
  • Divorce
  • Financial instability

Neurotic personality traits

Research indicates that eating disorders, like diabulimia, may be linked to certain personality traits, such as perfectionist tendencies, obsessive thinking, low self-esteem, and emotional instability. (10)

Difficulty regulating emotions

If someone doesn’t have healthy coping strategies to deal with difficult emotions or negative thoughts, they may develop disordered eating behaviors as a way to cope or distract from emotional distress. In cases of diabulimia, they may involve purging via restricting insulin therapy or eating foods they shouldn’t, due to their diabetes.

Low self-esteem

People with diabetes often experience severe weight loss before diagnosis, followed by weight gain with the start of insulin therapy, which can lead to body dissatisfaction and low self-esteem. Plus, a Type 1 diabetes diagnosis usually occurs during puberty, when individuals may already have preoccupations with their weight and negative body image. (2) 

Autonomy over insulin injections

Research has shown that almost a third of women mismanage their insulation administration to lose weight or to avoid weight gain. (9) Insulin omission is a form of purging for people with diabulimia, as it results in the excretion of calories, via excess sugars in urine. (2) Sufferers of diabulimia may adopt additional disordered eating and purging behaviors to further control their weight.

The deliberate restriction of insulin injections results in serious complications, including severe hyperglycemia, diabetic ketoacidosis, regular hospital visits, and, at worst, premature death. (11)

Social/peer pressure and competition

Feeling judged by others

There is a tendency for us as a society to describe food in moral terms, i.e., as “good” or “bad,” “healthy” or “unhealthy.” This can lead to people with diabetes feeling judged by others for the food choices they make. (6) They may even judge themselves, which can result in disordered eating behaviors, such as eating food in secret and then purging the extra calories by withholding insulin.

Social pressure surrounding image

Skewed beauty standards, such as those seen on social media with the use of unrealistic filters, can contribute to a disproportionately negative body image and focus on physical appearance. Peer and parental messages can also contribute to how a person views thinness and body shape and participates in social comparison. (6)

In adolescents particularly, these societal pressures can be exacerbated by the weight gain that occurs when starting insulin treatment.

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Treatment of diabulimia

Treatment for people presenting with two conditions requires a multidisciplinary approach from a team with knowledge of both eating disorders and diabetes. A collaborative approach from a dietitian specializing in diabetes, an endocrinologist, a psychologist, and a mental health professional will help formulate the right treatment plan.

The main priorities of treatment initially are to stabilize eating behaviors, maintain optimal glucose control, and address the purging, i.e., insulin restriction. (2) Therapies for diabulimia include:

  • Cognitive behavior therapy (CBT): CBT is a psycho-social intervention that helps manage diabulimia by changing the way you think and behave. It focuses on challenging faulty and negative thinking in the present to improve emotional regulation and develop better coping behaviors.
  • Family-based therapy (FBT): As diabulimia is more common in adolescents and young adults, FBT is a useful tool to help the whole family deal with the eating disorder. The whole family works together in therapy, and this is associated with better recovery outcomes than individual therapy alone.
  • Group support and therapy: These groups give people with diabulimia a place where they feel safe to talk about their disorder without feeling judged. Discussing their diabulimia with other patients helps people with the condition feel understood and that they’re not alone. 

Being met with empathy, support, and understanding is important when someone with diabulimia enters treatment. There are also support groups available for family members of loved ones struggling with diabulimia.

Within Health offers clinically-superior at-home treatment for all eating disorders, including diabulimia. If you’d like to learn more about our virtual programs, call our admissions team today.

Disclaimer about "overeating": Within Health hesitatingly uses the word "overeating" because it is the term currently associated with this condition in society, however, we believe it inherently overlooks the various psychological aspects of this condition which are often interconnected with internalized diet culture, and a restrictive mindset about food. For the remainder of this piece, we will therefore be putting "overeating" in quotations to recognize that the diagnosis itself pathologizes behavior that is potentially hardwired and adaptive to a restrictive mindset.

Disclaimer about weight loss drugs: Within does not endorse the use of any weight loss drug or behavior and seeks to provide education on the insidious nature of diet culture. We understand the complex nature of disordered eating and eating disorders and strongly encourage anyone engaging in these behaviors to reach out for help as soon as possible. No statement should be taken as healthcare advice. All healthcare decisions should be made with your individual healthcare provider.


  1. What is diabulimia: Symptoms, risk factors, and causes. (2021, December 3). Eating Disorder Hope. 
  2. Shaban, C. (2013). Diabulimia: a mental health condition or media hyperbole? Practical Diabetes, 30:3.
  3. Young V, et al. (2013) Eating problems in adolescents with Type 1 diabetes: a systematic review with meta-analysis. Diabetes Med 30: 189– 98
  4. Barbie Cervoni MS, R. D. (2021, May 4). What is diabulimia? Verywell Health. 
  5. Depression and eating disorders. Eating Disorder Hope. (2021, December 3). 
  6. Lauren Muhlheim, P. D. (2021, January 5). Why do some people get eating disorders? Verywell Mind. 
  7. Klump KL, Burt SA, McGue M, Iacono WG. (2007) Changes in Genetic and Environmental Influences on Disordered Eating Across Adolescence: A Longitudinal Twin Study. Arch Gen Psychiatry. 64(12):1409–1415
  8. U.S. Department of Health and Human Services. (n.d.). Eating disorders and the patient with diabetes. National Institute of Diabetes and Digestive and Kidney Diseases. 
  9. Eating disorders, trauma, and PTSD. National Eating Disorders Association. (2018, February 20). 
  10. Group, P. (n.d.). Understanding diabulimia - signs, symptoms and next steps. Priory. 
  11. Goebel-Fabbri, A. E., Fikkan, J., Franko, D. L., Pearson, K., Anderson, B. J., & Weinger, K. (2008). Insulin restriction and associated morbidity and mortality in women with Type 1 diabetes. Diabetes care, 31(3), 415–419


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