Eating Disorders in Australia


  • Approximately one million Australians are living with an eating disorder in any given year; that is, 4% of the population.1
  • Many more people experience disordered eating (i.e., behaviours consistent with an eating disorder such as restrictive dieting, binge eating, vomiting, laxative use) that do not meet criteria for an eating disorder.2 Approximately a third (31.6%) of Australian adolescents engage in disordered eating behaviours within any given year.3
  • Eating disorder symptoms are on the rise with at least weekly binge eating increasing almost six-fold since the late 1990s and strict dieting increasing almost four-fold4 with parallel increases in other behavioural and cognitive eating disorder symptoms (e.g. increased dieting, decreased quality of life).5
  • Of people with an eating disorder, 3% have anorexia nervosa, 12% bulimia nervosa, 47% binge eating disorder (BED) and 38% other eating disorders.1
  • There is limited research on the prevalence of eating disorders among Aboriginal and Torres Strait Islander peoples. However, emerging research suggests that Aboriginal and Torres Strait Islander peoples experience eating disorders and body image issues at a similar or higher rate than non-Indigenous people.6

Co-occurring conditions

A person with an eating disorder is at increased risk of experiencing another mental health or medical condition at the same time (known as a comorbidity). Comorbid conditions experienced by people living with eating disorders may be connected to their eating disorder symptoms and behaviours, for example osteoporosis.

For other comorbidities, the direction and mechanisms underlying any connection are unclear and a focus of future research.

Mental health 

Research suggests that over 80% of adults diagnosed with an eating disorder have at least one more psychiatric disorder.7 The most common psychiatric comorbidities associated with eating disorders include:

  • mood disorders (e.g. major depressive disorder)
  • anxiety disorders (e.g. generalised anxiety disorder, social anxiety)
  • post-traumatic stress disorder (PTSD) and trauma
  • substance misuse
  • personality disorders (avoidant, borderline, obsessive compulsive)
  • sexual dysfunction
  • non-suicidal self injury


The following comorbidities have been shown to have an increased prevalence in people living with an eating disorder compared with the general population:

  • Type 1 and 2 diabetes
  • Polycystic ovarian syndrome (PCOS)
  • Weak or fragile bones (e.g., osteopenia, osteoporosis)
  • Low blood pressure (hypotension)
  • Digestive issues (e.g., irritable bowel syndrome)
  • Joint pains
  • Headache and migraine
  • Menstrual problems (e.g., loss of menstruation)
  • Sleep problems


1. Deloitte Access Economics. Paying the price: The economic and social impact of eating orders in Australia. Australia: Deloitte Access Economics; 2012. 
Hay P, Mitchison D, Collado AEL, González-Chica DA, Stocks N, Touyz S. Burden and health-related quality of life of eating disorders, including Avoidant/Restrictive Food Intake Disorder (ARFID), in the Australian population. J Eat Disord. 2017;5(1):1-10. 
3. Sparti C, Santomauro D, Cruwys T, Burgess P, Harris M. Disordered eating among Australian adolescents: prevalence, functioning, and help received. Int J Eat Disord. 2019;52(3):246-54. 
4. Da Luz F, Sainsbury A, Mannan H, Touyz S, Mitchison D, Hay P. Prevalence of obesity and comorbid eating disorder behaviors in South Australia from 1995 to 2015. Int J Obes 2017;41(7):1148-53 
5. Mitchison D, Hay P, Slewa-Younan S, Mond J. Time trends in population prevalence of eating disorder behaviors and their relationship to quality of life. PLoS One. 2012;7(11):e48450. 
6. Burt A, Mitchison D, Dale E, Bussey K, Trompeter N, Lonergan A, et al. Prevalence, features and health impacts of eating disorders amongst First-Australian Yiramarang (adolescents) and in comparison with other Australian adolescents. J Eat Disord. 2020;8(1):1-10. 
7. Udo T, Grilo CM. Psychiatric and medical correlates of DSM‐5 eating disorders in a nationally representative sample of adults in the United States. Int J Eat Disord. 2019;52(1):42-50.


See also

What is an Eating Disorder?

Eating disorders are serious mental illnesses; they are not a lifestyle choice or a diet gone ‘too far’.


Who is Affected?

Eating disorders can occur in people of all ages and genders, across all socioeconomic groups, and from any cultural background.


Risk & Protective Factors

The elements that contribute to the development of an eating disorder are complex, and involve a range of biological, psychological…


Disordered Eating & Dieting

Disordered eating sits on a spectrum between normal eating and an eating disorder and may include symptoms and behaviours of eating…


Body Image

What is body image?Body image is a combination of the thoughts and feelings that you have about your body.


Weight Stigma

What is weight stigma?Weight stigma is the discrimination towards people based on their body weight and size.


People with Higher Weight

Historically, eating disorders have been conceptualised as illnesses of people of low body weight and typified by disorders such as…


Eating Disorders and Males

Eating disorders are serious, complex mental illnesses accompanied by physical and mental health complications which may be severe and life…


Eating Disorders and Diabetes

If you are living with diabetes and experiencing disordered eating or an eating disorder, you are not alone.


Stigma and Eating Disorders

Eating disorders are serious mental illnesses characterised by disturbances in behaviours, thoughts and feelings towards body weight and shape, and/or food and…



Research indicates that there are generally low levels of mental health literacy in the community; however, general beliefs and misunderstanding…