ARFID and autism: Link, prevalence, management, and FAQs
Avoidant-restrictive food intake disorder (ARFID) frequently co-occurs with autism. Some features of autism, such as sensory issues and gastrointestinal (GI) issues, may overlap with or contribute to ARFID.
People with ARFID avoid or limit foods for various reasons. These include a dislike of a food’s texture or appearance and a fear of the consequences of eating, such as choking or vomiting.
Autism, which people also refer to as autism spectrum disorder (ASD), is a neurodevelopmental condition that can affect how a person communicates, behaves, and interacts socially.
This article looks at the connection between ARFID and autism, and the prevalence, signs, diagnosis, and management of the eating disorder in autistic individuals. It also discusses when to contact a doctor and answers some frequently asked questions.
A variety of studies have found connections between ARFID and autism.
The conditions often occur together, and certain traits of autism may overlap with or contribute to ARFID. These include:
In a 2023 study, researchers mention studies that suggest ARFID occurs in 0.3% to 2% of adults. The study found a prevalence of 6.4% in children.
According to the National Association of Anorexia Nervosa and Associated Disorders (ANAD), between 13% and 58% of people with ARFID are also autistic.
In a 2025 meta-analysis of 21 studies, researchers found that the prevalence of autism in people with ARFID may be 15 times higher than within the larger population. The study also found that the prevalence of ARFID was 11.41% in autistic people.
Healthcare professionals use the criteria in the Diagnostic Statistical Manual of Mental Disorders, Fifth Edition (DSM‐5) to diagnose both ARFID and autism.
To diagnose ARFID, the condition needs to cause a person to restrict or avoid food to the extent that it significantly affects their nutritional intake, weight, or psychosocial functioning. The food restriction must not be primarily due to body image issues or other health conditions.
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The criteria also include certain types of restricted or repetitive behaviors. These include repetitive movements or speech.
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Different types of support and therapy are also available to help autistic people develop specific skills and strategies. These may help them manage various challenges, including those that contribute to ARFID.
Treatment may help a person manage ARFID and challenges related to autism. A parent or caregiver should speak with a healthcare professional if they notice signs of ARFID in their child.
ARFID is a disorder that is more severe and complex than picky eating. Children do not typically outgrow ARFID, and without treatment, symptoms of the disorder can persist into adulthood. However, there are various strategies that can help support individuals with ARFID.
ARFID is a disorder that is more severe and complex than picky eating. Children do not typically outgrow ARFID, and without treatment, symptoms of the disorder can persist into adulthood. However, there are various strategies that can help support individuals with ARFID.
A person with ARFID may become dependent on dietary supplements if they do not receive adequate nutrition from food sources. Treatment that focuses on improving eating is preferable, as food can provide better nutrition. Supplements may also cause various side effects and might interact with medication.
However, if a person, parent, or caregiver finds that supplements are necessary to prevent malnutrition, it is essential to consult with a healthcare professional about taking vitamins and supplements. They will be able to advise on the best ones to take.
A person with ARFID may become dependent on dietary supplements if they do not receive adequate nutrition from food sources. Treatment that focuses on improving eating is preferable, as food can provide better nutrition. Supplements may also cause various side effects and might interact with medication.
However, if a person, parent, or caregiver finds that supplements are necessary to prevent malnutrition, it is essential to consult with a healthcare professional about taking vitamins and supplements. They will be able to advise on the best ones to take.
ARFID and autism often co-occur. Certain features of the conditions overlap, such as sensory sensitivities to food.
Autistic traits may contribute to ARFID in various ways, such as social challenges and rigidity around routines, which can result in restricted eating. There may also be genetic, structural, and functional differences that contribute to both disorders.
Treatment and support can help people manage the challenges of autism and ARFID. Treatment may consist of various approaches, including psychotherapy, medication, and social support.