What Is Underneath ARFID? Understanding the Three Presentations of Avoidant/Restrictive Food Intake Disorder

Written by Dr. Colleen Reichmann, owner and clinical director of Wildflower Therapy

When a child has ARFID, parents often arrive in therapy with a deceptively simple question:

Why?

Why can she eat one brand of chicken nugget but not another? Why does the smell of dinner make him gag? Is his vomiting after breakfast because of ARFID, or the cause of it? Why is a child who used to eat a wider range of foods suddenly terrified of choking? Why does my teenager say she is simply "not hungry" when she can go hours without eating? Why does eating seem to take so much energy? Why does he seem to genuinely just not care about eating??

And perhaps the question I hear most often is: What is actually underneath this ARFID thing?

Avoidant/restrictive food intake disorder, or ARFID, can look very different from one person to another. For some people, the central problem is sensory sensitivity. Food may feel overwhelming because of its texture, smell, temperature, appearance, or taste. For others, eating becomes frightening after an experience with choking, vomiting, reflux, or another unpleasant physical sensation. And for some, food simply does not register as particularly interesting or rewarding. People with this presentation may rarely feel hungry, fill up quickly, or genuinely forget to eat.

These patterns are often referred to as the three primary ARFID presentations: sensory sensitivity, fear of aversive consequences, and lack of interest in food or eating. They can overlap, too. A child may begin with one pattern and develop another over time.

Understanding what is underneath the food avoidance matters because effective ARFID therapy is very specific, and far more is involved than simply encouraging someone to "try new foods."

So What causes ARFID?

There is no single cause of ARFID. Some people appear to have a longstanding biological or temperamental sensitivity to sensory experiences. Others develop significant food avoidance after a frightening or physically uncomfortable experience. Anxiety can play an incredibly important role, particularly when someone becomes afraid of choking, vomiting, abdominal pain, or another consequence of eating. And some people have very low appetite or limited interest in food from an early age-their parents will often describe feeling perplexed early on, and struggles with staying on the growth curve without any other underlying factors that seemed apparent.

There can also be an interaction between factors.

A child with a sensitive sensory system, for example, may have always been selective with food. If that child then experiences a choking episode, the food world can become even smaller. A child who has significant anxiety about vomiting may begin avoiding certain foods and then become increasingly sensitive to hunger, fullness, or physical sensations in the stomach. Someone who rarely experiences hunger may eat so little that appetite cues become even harder to recognize.

This is one reason ARFID treatment is individualized. The therapist needs to understand not only what foods someone avoids, but why those foods have become difficult in the first place.

The three presentations of ARFID

The three presentations of ARFID are sometimes described as subtypes, although they are better understood as overlapping patterns. A person can have one, two, or all three.

1. Sensory sensitivity: "I can't eat that because of how it feels."

For someone with sensory sensitivity, the problem may begin before the food even reaches their mouth.

The smell of a particular food might be overwhelming. A mushy texture might feel unbearable. Mixed foods may be particularly difficult because the person cannot predict what each bite will feel like. A child might tolerate a crunchy apple but refuse applesauce. They might eat one very specific brand of chicken nugget but reject another because the texture is slightly different.

To someone outside the situation, this can look incredibly rigid. From the inside, however, the sensory experience can be genuinely intense.

This presentation of ARFID is particularly common in children who have strong sensory sensitivities more generally, and it can also occur alongside neurodevelopmental differences. Sensory sensitivity does NOT automatically mean that a person is autistic or neurodivergent, but understanding a person's broader sensory profile can be clinically useful.

In therapy, treatment generally involves gradual exposure to sensory experiences associated with food. This is not about forcing someone to swallow a food they find intolerable. In CBT-AR, for example, exposure may move through a sequence of looking at a food, touching it, smelling it, tasting it, chewing it, and eventually incorporating it into regular eating. The goal is to help the person's nervous system become more familiar with experiences that have previously led to avoidance.

Talk therapy is still an important part of this work (this is why the most effective ARFID therapy is not feeding therapy as a stand alone, but exposure-based talk therapy with a specialized psychologist or counselor). A child may need help identifying anticipatory anxiety, developing language for sensory experiences, increasing flexibility, or understanding why their brain reacts so strongly to certain foods. Parents may need support learning how to respond to food refusal without turning every meal into a battle.

The exposure is the behavioral engine of treatment. The conversation around the exposure helps make the work possible.

2. Fear of aversive consequences: "I'm afraid something bad will happen if I eat."

This presentation often has a very different feel.

A person may be afraid of choking. They may worry that they will vomit. They may associate eating with stomach pain, allergic reactions, reflux, nausea, or another frightening physical experience.

Sometimes there is a clear event that preceded the avoidance. A child chokes on a piece of food and becomes afraid to eat. Someone becomes sick after eating and begins eliminating foods. A person experiences severe nausea during an illness and afterward becomes hyperaware of every sensation in their stomach.

Other times, the fear develops more gradually.

Once the brain begins associating eating with danger, avoidance can become incredibly reinforcing. The person avoids the feared food, feels temporary relief, and the brain learns: avoiding that food kept me safe.

This is where anxiety treatment and ARFID treatment overlap considerably.

Therapy often involves creating a gradual fear and avoidance hierarchy, beginning with situations that feel manageable and working toward more difficult foods or eating experiences. Repeated exposure gives the person an opportunity to learn that anxiety can rise and fall without avoidance needing to take over. CBT-AR specifically uses graded exposure for fears involving choking, vomiting, and other aversive consequences.

But this is also where the "talk therapy" component can become particularly important.

A person may need to process a frightening choking experience. They may need help understanding health anxiety or panic symptoms. They may need to learn how to interpret nausea or fullness without immediately assuming something is wrong. Sometimes the therapist is helping the client distinguish between "I am uncomfortable" and "I am in danger."

The goal isn't to help their brain develop a more flexible response to the possibility of discomfort, NOT to try to show them that the fear is silly or meaningless.

3. Lack of interest in food: "I just don't really think about eating."

This presentation can be especially confusing for parents.

A child may genuinely have very little interest in food. They may not notice hunger until they are extremely hungry. They may become full after only a small amount. They may take an extraordinarily long time to eat because eating feels like an interruption to whatever they would rather be doing.

(And pssst: Adults can experience this too.)

Someone may realize at 4 p.m. that they have barely eaten all day. They may describe food as something they have to remember to do rather than something they naturally look forward to. Some people experience strong fullness cues or limited appetite and gradually develop a very narrow diet because eating simply does not feel especially rewarding.

This presentation can sometimes be mistaken for defiance or laziness, particularly in children. It can also be confusing when a person does not experience obvious anxiety around food.

Treatment therefore looks somewhat different.

CBT-AR may use interoceptive exposure, along with structured eating and work to increase the volume and variety of foods. The person may practice becoming more comfortable with sensations associated with fullness and eating while also learning to pay closer attention to hunger, fullness, and other internal cues.

There may also be a lot of practical work involved. Parents may need help creating predictable eating routines. A teenager may need support building eating into an unpredictable school schedule. An adult may need to understand why simply "waiting until you're hungry" isn't working.

And again, the broader psychological picture matters. Low appetite may coexist with anxiety, depression, ADHD, sensory differences, gastrointestinal difficulties, or other factors that affect eating. Those issues may need their own attention alongside the ARFID-specific work.

What does ARFID therapy actually look like?

One of the most important things for families to know is that ARFID therapy usually involves exposure.

That can sound intimidating. I know. When parents hear "exposure," they sometimes imagine a therapist putting a plate of a child's most feared food in front of them and insisting that they eat it. Evidence-based ARFID treatment is MUCH more thoughtful than that.

A commonly used treatment is Cognitive Behavioral Therapy for ARFID, or CBT-AR, a specialized, modular approach developed specifically for ARFID. CBT-AR generally begins with psychoeducation, establishing regular eating, and understanding the factors maintaining the person's food avoidance. Treatment then becomes increasingly focused on targeted exposures based on the person's particular ARFID presentation. A final phase focuses on maintaining progress and preventing relapse.

The exposure itself is only one piece of the work.

For sensory sensitivity, the therapist may help someone gradually explore the sensory properties of unfamiliar foods. For fear of aversive consequences, treatment may involve building a hierarchy of feared foods or eating situations and working through those fears gradually. And for low interest in eating, therapy may focus more heavily on regular eating, appetite awareness, increasing volume or variety, and becoming more comfortable with sensations associated with eating.

Research on CBT-AR has found that improvements in ARFID symptoms are associated with changes in these underlying maintaining mechanisms, and newer work continues to examine how specifically targeted treatment components contribute to those changes.

So where does "talk therapy" fit into ARFID treatment?

This is an important question because ARFID treatment can sound very behavioral when you first hear about exposure.

At Wildflower Therapy, we truly mean it when we say that we deeply think about the whole person sitting across from us.

A child might need exposure work and help with anxiety.

A teenager might need to expand her diet and learn how to talk about food without shame.

An adult might need to work through a frightening medical experience that changed their relationship with eating.

A family might need support understanding their child's sensory experiences and figuring out how to respond at home.

The specific treatment depends on what is underneath the avoidance.That might mean working on anxiety, perfectionism, flexibility, sensory overwhelm, panic, trauma related to a choking or vomiting experience, difficulty recognizing internal body cues, or the practical challenges of eating regularly. Often times, parents are an important part of the treatment, particularly when a younger child is struggling with significant restriction or nutritional concerns.

In other words, exposure gets someone closer to the food, while therapy helps us understand what has been making the food difficult in the first place.

What if someone has more than one ARFID presentation?

That is very common.

A child might have strong sensory sensitivity and also be afraid of vomiting. Another person might have low appetite but also avoid foods because they are worried about choking. Someone may have started with one presentation and developed additional avoidance over time.

The three presentations aren't boxes that a person has to fit neatly into. Current models of ARFID recognize that these mechanisms can overlap, and treatment can be adjusted accordingly.

This is one reason a thorough assessment matters. Rather than asking only, "What foods will you eat?", an ARFID therapist may also want to understand:

What happens when you encounter a food you don't eat?

Is it disgust? Anxiety? A sensory reaction? Lack of hunger? Fear of choking? Fear of vomiting? A feeling that the food is unsafe? A physical sensation that becomes overwhelming?

Those answers tell us much more about how to structure treatment.

When should you seek ARFID treatment?

You don't have to wait until eating becomes a medical crisis.

ARFID can interfere with nutrition, growth, energy, social experiences, school, travel, family meals, and everyday life. Someone may be avoiding enough foods that nutritional deficiencies become a concern. A child may have stopped growing as expected. A teenager may be unable to eat at school or at friends' houses. An adult may structure their entire life around finding the few foods they can reliably tolerate.

And sometimes the biggest sign is simply that food has started taking up far more space in the person's life than it should.

If you are wondering whether your child is an extremely picky eater or may have ARFID, that is a reasonable reason to seek an assessment. Yes, even if pediatricians have assured you that they are fine, or that their growth curve is ok. ARFID is sadly, still frequently missed in routine medical appointments.

And if you're an adult who has spent years working around a very limited diet, you can seek help, too.

Please know that ARFID treatment is not about forcing someone to become a person who loves every food. It is about helping someone build a more flexible (and yes, more varied), more sustainable relationship with eating while understanding the sensory, emotional, physical, and psychological factors that have made food difficult.

At Wildflower Therapy, our clinicians specialize in eating disorders, ARFID, and body image concerns. We work with children, adolescents, college students, and adults, with therapy available in person in Philadelphia and Devon, Pennsylvania, as well as virtually for clients in states where we are licensed to provide care.

If you are wondering whether ARFID therapy could help you or your child, we offer free consultation calls to talk through what you're seeing and determine what kind of support makes sense. Please reach out today if you would like to talk more about therapy options within our practice!