Neurodiversity
Around 70 percent of autistic children have atypical eating behaviours. ARFID, Avoidant Restrictive Food Intake Disorder, is not fussiness and it does not resolve with persistence. Here is what families need to know.
The first thing I want to say is this: your child is not being difficult. They are not doing this to frustrate you. And the advice to 'just keep offering it, they'll eat when they're hungry' is not only unhelpful for children with genuine food avoidance related to sensory processing, it can be genuinely harmful.
Avoidant Restrictive Food Intake Disorder, ARFID, is an eating condition characterised by extreme and persistent avoidance of foods based on sensory properties, fear of aversive consequences like choking or vomiting, or apparent lack of interest in food. It is significantly more common in autistic and ADHD individuals than in the general population, and it deserves to be understood on its own terms.
How common is it?
An estimated 21 percent of autistic people experience ARFID in their lifetime. Around 70 percent of autistic children display atypical eating behaviours of some kind. The overlap with ADHD is also significant: approximately 26 percent of people diagnosed with ARFID also have ADHD, and children with ADHD are 12 times more likely than neurotypical children to experience loss-of-control eating.
These numbers matter not because they should alarm you but because they should normalise what you are seeing. Your child's eating difficulties are not a reflection of your parenting. They are a presentation of a real condition that is genuinely overrepresented in neurodivergent populations.
What drives ARFID in autistic children
For most autistic children, ARFID is driven primarily by sensory properties of food: texture, temperature, colour, smell, and the way foods feel in the mouth. The sensory experience of eating is simply different in a sensory-sensitive nervous system. Foods that register as mildly unpleasant for most people can register as genuinely intolerable for an autistic child. This is not preference. It is perception.
Interoceptive differences also play a role. Some autistic children have poor awareness of hunger and fullness signals, making the regulatory aspects of eating, knowing when to eat, knowing when to stop, genuinely more difficult. Anxiety contributes: the anticipation of an unpleasant sensory experience creates a conditioned aversion that is very difficult to override through willpower or encouragement.
What ARFID is not
ARFID is not ordinary picky eating. Picky eating involves having preferences and being selective. ARFID involves avoidance that is severe enough to impact nutritional intake, daily functioning, and quality of life. The distinction matters because the response is different. Strategies that work for picky eating, continuing to offer a wide variety of foods, eating together as a family, not providing alternatives, can increase anxiety and make ARFID worse.
- Limited food repertoire: often a small and very specific list of 'safe' foods, with significant distress at any change to those foods
- Distress at the sight, smell, or proximity of non-preferred foods
- Refusal of foods that were previously accepted, often related to a change in brand, packaging, or preparation method
- Nutritional impact: inadequate intake of specific nutrients, sometimes requiring supplementation
- Social impact: significant difficulty at social events involving food, school canteen situations, other people's homes
- Weight impact in some cases: though many children with ARFID maintain healthy weight on a restricted repertoire
What actually helps
ARFID responds to therapeutic approaches that work with the sensory system rather than attempting to override it. A paediatric dietitian with specific ARFID experience is the starting point for nutritional assessment and support. An occupational therapist with expertise in sensory processing and feeding can work on the sensory desensitisation process systematically and safely.
- Remove pressure from mealtimes: anxiety about eating makes eating harder. The goal is a neutral or positive relationship with mealtimes before any expansion of the food repertoire begins
- Work with a paediatric dietitian to assess nutritional adequacy and supplement where needed, do not rely on the child expanding their repertoire on a timeline that suits the plan
- Sensory food exposure therapy with an OT: systematic, gradual, non-pressured exposure to new foods through play, smell, touch, not tasting initially
- In Australia, Dietitians Australia is currently advocating for guaranteed dietitian access for neurodivergent children with feeding difficulties under the Thriving Kids program, worth raising with your NDIA planner or support coordinator
- Connect with other families navigating ARFID, the practical lived experience of what has worked for other neurodivergent children with similar profiles is often the most useful resource
“Remove the pressure before adding the variety. A child whose relationship with mealtimes is anxious cannot learn new foods from that state. Safety at the table comes first.”
Neurodiversity
A note on accuracy:While every effort has been made to ensure the information in this article is accurate at the time of writing, facts, policies and research can change. We're human, and sometimes we get things wrong. If you spot something that needs updating, we'd genuinely love to hear from you.
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Dave Harrison
ESW · Neurodiversity Advocate · Podcast Host
Dave Harrison is currently working in Australian schools as an Education Support Worker. He's the founder of THRVHUB, host of the Different Is Normal podcast, and a parent of a neurodivergent teenager, writing from both sides of the classroom.
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