Orthorexia (Orthorexia Nervosa)

Overview
What Is Orthorexia?
Orthorexia is marked by a preoccupation with all things surrounding food, including obsessing over ingredients, what the next meal will be, and the eating habits of friends.
“There's increased awareness, and it's being identified and treated — when in the past it was getting misdiagnosed or even missed completely,” says Samantha DeCaro, PsyD, the director of clinical outreach and education at the Renfrew Center in Philadelphia.
Types of Orthorexia
More often, though, the terms are used interchangeably. In clinical practice, however, they mean the same thing, Dr. DeCaro says.
Signs and Symptoms of Orthorexia
Outward signs of orthorexia are not necessarily visible. The signs are behavior-based. “Orthorexia is not necessarily driven by a strong desire to lose weight, and it's not necessarily driven by a strong desire to cut calories,” DeCaro says. “It's really driven by this desire to achieve optimal health.”
- Checking nutrition labels compulsively
- Eliminating a large portion of food groups and only eating a narrow group of “healthy” or “pure” foods
- Being overly concerned with the health of ingredients consumed
- Body image concerns (though these are not always present)
- Being unusually interested in what others are eating and feeling superior to them
- A preoccupation with food and what might be served at an event
- Feeling stressed when healthy foods aren’t available
DeCaro adds that malnourishment and weight loss are other signs that could result from the extreme restriction.
Causes and Risk Factors of Orthorexia
- Certain personality traits such as perfectionism and neuroticism
- A history of dieting
- Poor body image
- Media exposure promoting clean eating and unrealistic bodies
- The glorification of diet culture
How Is Orthorexia Diagnosed?
Furthermore, the main symptoms of orthorexia — a focus on healthy eating — can blend in and overlap with wellness or diet culture and lead to it going unidentified, DeCaro says. “And, unfortunately, they can be seen as someone taking care of themselves.”
But there has been talk among the medical community on how to go about identifying it.
- Preoccupation with the quality and purity of food
- Excessive focus on the nutritional content of food
- Rigid dietary restrictions
- Impact on daily life and well-being
Treatment and Medication Options for Orthorexia
Medication Options
Currently there’s no research supporting the use of medications or drugs to help with orthorexia. But addressing other co-occurring diagnoses with medication can help.
Psychotherapy Options
- Psychoeducation informs individuals about the disorder, its impact on their physical and mental health, and psychological factors at play. This could come from a therapist, dietitian, primary care physician, and sometimes a psychiatrist, DeCaro says.
- Psychotherapy involves sessions with a psychologist or therapist and works by increasing exposure to the foods that give the individual distress.
- Cognitive behavioral therapy CBT targets the maladaptive behaviors and thoughts that are related to orthorexia in hopes that the individual can reframe the unhealthy aspects and develop coping strategies. A therapist, psychologist, or counselor may also use CBT to help an individual reintroduce foods they previously deemed “unhealthy.”
- Nutritional counseling from a nutritionist or registered dietitian (RD) specializing in eating disorders can help restore a healthy approach to food and address any deficiencies.
- Intuitive eating counseling sessions with a nutritionist or RD encourage paying close attention to internal hunger cues and giving the body nutrition for nourishment rather than restriction. Intuitive eating also tends to promote a positive body image and self-compassion.
The number of sessions needed for each of these types of therapies depends on the severity of symptoms, medical issues, and co-occurring psychiatric disorders, DeCaro says.
Other Complementary and Integrative Therapies
Prevention of Orthorexia
- Eat a balanced diet and avoid extreme dieting.
- Avoid supplements, laxatives, or herbal products designed for weight loss
- Exercise.
- Treat mental health challenges, such as depression, anxiety, or body image issues.
DeCaro also says there are protective factors that you can put in place to keep the risk of orthorexia or another eating disorder at a minimum, such as intuitive eating, stress management, learning to express your needs and emotions, and effective coping skills. She also says it’s important to avoid dieting or getting wrapped up in diet culture, because diets can be a gateway to disordered eating.
If you’ve fallen into these thought patterns and behaviors before, DeCaro suggests maintaining orthorexia management strategies and having a care team in place to help if you feel yourself slipping toward a relapse. “It might mean having more therapy sessions or going into a higher level of care where you have that support and structure to break the cycle,” DeCaro says.
How Long Does Orthorexia Last?
It’s hard to say how long people tend to have orthorexia, as it isn’t officially recognized by the DSM-5 and therefore hasn’t been thoroughly studied, DeCaro says.
“It's probably safe to assume that with orthorexia (and with other eating disorders) we are probably underestimating the folks out there who have it and the length of time that they're struggling with it,” DeCaro says.
Part of the issue that delays identifying orthorexia is that behaviors may appear healthy on the surface and there’s overlap between orthorexia and wellness culture. “People may even praise the individual, saying ‘Look how healthy, look how disciplined they are,’” DeCaro says. “It can get minimized and dismissed.”
That said, the sooner someone notices signs of orthorexia and seeks help, the better their prognosis, DeCaro says.
Complications of Orthorexia
Once a person begins treatment for orthorexia, they’ll likely undergo a physical examination because of the possibility of malnourishment.
- Osteopenia, or loss of bone density
- Anemia, a lack of healthy red blood cells, which deliver oxygen around the body
- Hyponatremia, abnormally low sodium levels
- Pancytopenia, a condition with lower number of red and white blood cells in the body
- Bradycardia, an unusually slow heart rate
- Pneumothorax and pneumomediastinum, when air is present in the space between the lungs
Research and Statistics: How Many People Have Orthorexia?
Conditions Related to Orthorexia
- Anorexia Nervosa Anorexia nervosa and orthorexia both involve extreme restriction, but orthorexia doesn’t typically come with the same fear of gaining weight that anorexia nervosa does. Those with anorexia focus more on food quantity, and those with orthorexia focus on food quality.
- Obsessive-Compulsive Disorder (OCD) Like orthorexia, obsessive compulsive disorder comes with perfectionism, rigid thinking, and a preoccupation with rules.
- Other Eating Disorders DeCaro says other eating disorders are also characterized by obsessive thoughts, compulsive behaviors, fears of certain foods, and avoidance of certain foods.
“I see it as its own syndrome,” DeCaro says. “I think it captures a very specific set of symptoms. And I think one day it probably will land in the DSM.” To establish orthorexia as a diagnosis in the DSM, DeCaro says there would need to be more compelling, peer-reviewed evidence that it is a distinct disorder with its own unique features and treatment needs.
An important way that orthorexia is different from many other eating disorders is that it doesn’t typically involve a preoccupation with thinness or body size, DeCaro explains. Rather, the central focus is on the quality and healthfulness of the foods.
Support for Orthorexia
Psychology Today’s “Find an Eating Disorder Specialist” tool can help you find a therapist who specializes in the eating disorder population.
National Alliance for Eating Disorders
The National Alliance for Eating Disorders offers tips on how to help a loved one who may be experiencing orthorexia. The organization also offers a free helpline, which is confidential and gives you an opportunity to speak with a licensed professional who can help if you’re struggling with an eating disorder.
The 25-minute “Orthorexia” podcast episode in this mental health series shares more information about orthorexia.
The Takeaway
Enthusiasm for healthy eating is generally a good thing. It becomes unhealthy orthorexia when it’s obsessive and interferes with daily life. Though not officially recognized as an eating disorder, orthorexia can be very disruptive, but therapy can help with recovery. “You don’t need to do this alone,” DeCaro says.
Common Questions & Answers
Resources We Trust
- Cleveland Clinic: Orthorexia: When a Commitment to Healthy Eating Goes Too Far
- National Eating Disorder Association: Get Help
- MedlinePlus: Eating Disorders
- National Association of Anorexia Nervosa and Associated Disorders: Eating Disorders: Common Warning Signs
- National Eating Disorders Association: Orthorexia

Kelsey M. Latimer, PhD, RN
Medical Reviewer
Kelsey M. Latimer, PhD, RN, is a psychologist, nurse, and certified eating disorder specialist, and is the founder and owner of KML Psychological Services.
Dr. Latimer earned her PhD and master's degree from the University of North Texas, with an emphasis in child and adolescent development and in neuropsychology. Throughout her doctoral training, she became passionate about the prevention and treatment of eating disorders, women's issues, trauma treatment, and anxiety management. She has since overseen several nationally recognized eating disorder treatment programs.
She recently earned a bachelor's in nursing from Florida Atlantic University and is in the process of completing a master's of nursing, with a psychiatric mental health focus, which will allow her to become a medication provider. In addition, she has been accepted into an intensive research training and certification program at Harvard Medical School for 2024.
Latimer's focus is on empowering people to be informed and aware of their health and well-being, which includes increasing access to care. She has made over 50 invited appearances to speak about topics such as body image, dieting downfalls, eating disorder evidence-based treatment, college student functioning, and working with the millennial generation. She has been featured in dozens of media outlets and is a coauthor of the children's book series Poofas, which helps children understand their emotions and develop positive self-esteem and self-talk.

Moira Lawler
Author
- Horovitz O et al. Orthorexia and Orthorexia Nervosa: A Comprehensive Examination of Prevalence, Risk Factors, Diagnosis, and Treatment. Nutrients. September 3, 2023.
- Orthorexia. National Eating Disorders Association.
- Orthorexia: When Healthy Eating Becomes an Obsession. PennMedicine Princeton Health. Summer 2019.
- McComb SE et al. Orthorexia nervosa: A review of psychosocial risk factors. Appetite. September 1, 2019.
- Turner PG et al. Instagram use is linked to increased symptoms of orthorexia nervosa. Eating and Weight Disorders. March 1, 2017.
- Heiss S et al. What does the ORTO-15 measure? Assessing the construct validity of a common orthorexia nervosa questionnaire in a meat avoiding sample. Appetite. April 1, 2019.
- Rogoza et al. Introducing ORTO-R: a revision of ORTO-15 : Based on the re-assessment of original data. Eating and Weight Disorders. April 2021.
- Cena et al. Definition and diagnostic criteria for orthorexia nervosa: A narrative review of the literature. Eating and Weight Disorders. April 2019.
- Scarff JR. Orthorexia Nervosa: An Obsession With Healthy Eating. Federal Practitioner. June 2017.
- Nido M et al. A Quick Guide to Orthorexia Nervosa. National Alliance for Eating Disorders. July 8, 2022.
- Eating Disorders. Mayo Clinic. March 28, 2023.
- Osteopenia. Cleveland Clinic. March 19, 2024.
- Anemia. Mayo Clinic. May 11, 2023.
- Hyponatremia. Mayo Clinic. May 17, 2022.
- Pancytopenia. National Cancer Institute.
- Bradycardia. Cleveland Clinic. June 23, 2022.
- Pneumomediastinum. Johns Hopkins Medicine.
- Dunn TM et al. Prevalence of orthorexia nervosa is less than 1 %: data from a US sample. Eating and Weight Disorders. March 2017.
- Varga M et al. Evidence and gaps in the literature on orthorexia nervosa. Eating and Weight Disorders. June 2013.
- Brytek-Matera A. Vegetarian diet and orthorexia nervosa: a review of the literature. Eating and Weight Disorders. February 2021.
- Çiçekoğlu P et al. A Comparison of Eating Attitudes Between Vegans/Vegetarians and Nonvegans/Nonvegetarians in Terms of Orthorexia Nervosa. Archives of Psychiatric Nursing. April 2018.