What is ARFID? Understanding a Complex Disorder

Do you avoid eating because you fear that you might choke, vomit, or experience gastrointestinal discomfort?

If yes, you may be experiencing the ARFID (Avoidant restrictive food intake disorder)!

It is a lesser-known eating disorder, also known by the name avoidant/restrictive food intake disorder. People experiencing this condition are selective in eating, sensitive to textures, and disinterested in food. They have a strong fear of undesirable eating consequences.

However, it severely impacts health and leads to nutritional deficiencies and weight loss.

ARFID is a newly recognised diagnosis in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). It can occur at any age, but typically appears in childhood and can last into adulthood.

Similarly, this condition may also occur with other medical or psychiatric conditions, complicating both diagnosis and treatment.

What is ARFID?

Avoidant/restrictive food intake disorder is a disorder that causes you to restrict the quantity and variety of food you eat. It isn’t the result of an unwanted self-image or an attempt to reduce body weight, which is common among other eating disorders. Mealtimes often become stressful for families, and individuals experiencing this may avoid social gatherings that involve food. People in this state show selectiveness in their food preferences, often opting for a limited variety of foods.

The DSM‐5 definition of avoidant restrictive food intake disorder presents three main drivers of this condition: 

• Individuals with sensory sensitivity may have an intensified perception of tastes. It can be particularly bitter and sweet, which might classify them as “supertasters” due to a biological predisposition.
• A lack of interest in food observed in some with ARFID could be linked to reduced brain activity in appetite-regulating areas. It can be the hypothalamus and insula, which affect hunger sensations and satiety.
• Avoidant restrictive food intake disorder usually stems from fear of aversive consequences. It is an exaggerated fear response that may be present. It can be possibly triggered by overactive fear-related brain circuitry, which involves the amygdala and prefrontal cortex.

Research shows that avoidant restrictive food intake disorder prevalence in the general child population ranges from 0.35% to 3.2%. However, globally, in adult populations from 0.3% to 3.1%.

As per the National Institute of Medicine, males with ARFID have a higher prevalence than females.

Examples of avoidant restrictive food intake disorder

Let’s imagine it’s dinner time and you are feeling hungry. Then you are invited to the table, which is full of different food items. Everyone is feeling excited and relaxed, whereas you start to feel anxious and nervous.

Your mind starts to think, if I eat this food, I will choke, what if I cannot swallow? You feel sick after seeing all this and intend to push the plate. ARFID is different from other eating disorders in a way that it isn’t about body appearance or weight management issues. It’s about anxiety, distress, and sometimes even panic around food itself.

The Pathopsychology of ARFID Disorder

Sensory sensitivity to food qualities, lack of interest in food/eating, and fear of aversive somatic consequences of food intake. It is often in response to aversive eating experiences. ARFID is also related to neurodevelopmental disorders such as autism spectrum disorder and ADHD.

Furthermore, various conditions may also present with appetite loss or weight reduction. These can be tumours or endocrine disorders, such as diabetes, hyperthyroidism, or Addison’s disease. Therefore, differential diagnoses should be considered during the evaluation process.

What are the Signs and Symptoms of ARFID?

Although weight loss is not always a sign that you are experiencing avoidant restrictive food intake disorder. However, excessive loss in weight or stuttering growth can signal restrictive eating. Symptoms show up following a traumatic food-related incident, as follows:

Behavioral symptoms may include:

• Wearing too many clothes in layers to hide the weight loss
• Unable to tolerate cold
• Lethargic
• Vague gastrointestinal issues, such as an upset stomach
• Feels no hunger during meal times
• Restriction on the food
• Excessive fear of choking or vomiting
• Lack of appetite
• Limited eating, as they only eat preferred food
• Extremely disturbed because of body image

Physical symptoms may include:

Physical effects of avoidant restrictive food intake disorder are inconsistent because of their eating pattern. People in this state experience physical symptoms and medical consequences of starvation

• Significant weight loss
• Constipation
• Abdominal pain, or an upset stomach
• Low body temperature
• Irregular menstrual cycles
• Fainting or dizziness
• Fine hair on your body (lanugo)
• Vomiting
• Difficulties concentrating
• Sleep problems
• Dry skin
• brittle nails
• Cold, mottled hands and feet or swelling of the feet

Types of Avoidant/Restrictive Food Intake Disorder

There are three primary types of avoidant restrictive food intake disorder in children and adolescents:

1. Avoidant

Fear-based avoidance: When someone avoids foods due to worry about negative consequences like choking, vomiting, having an allergic reaction, or experiencing pain, usually caused by a past traumatic event. Avoidant ARFID is the fear of an upsetting eating event or trauma that has negative consequences on someone’s mind.

“For example, someone might have had a really terrible stomach bug once. That experience then causes them to avoid foods associated with that experience to prevent themselves from becoming sick and vomiting again.”

 2. Aversive

Aversive avoidant restrictive food intake disorder is a sensory-based avoidance. It is a strong preference for the sensory features of food, such as taste, texture, appearance, or temperature.

When someone finds appearances of food overwhelming or disgusting, leading them to eat only a narrow range of “safe” foods.

People who have this disorder type are considered ‘super tasters,’ because they have a greater ability to differentiate between different flavors and textures of food compared to normative eaters.

3. Restrictive

Restrictive ARFID is an overall disinterest in food or motivation to eat. It is the sign of low appetite or lack of interest. When someone has little natural drive to eat, doesn’t find food particularly enjoyable, and often feels full very quickly, or simply forgets to eat. They don’t have the natural, biological hunger cues that normative eaters get.

What are the Causes of AFRID?

Early childhood experiences, sensory sensitivity, and anxiety disorders may contribute to the outgrowth of this condition.

The main cause of avoidant restrictive food intake disorder is not fully understood. Many researchers say that it’s a combination of a child’s temperament, genes, and triggering events (such as choking). Some of the listed causes are as follows.

• Anxiety.
• Fear
• Genetic changes and factors
• Social, cultural, and environmental influences
• Trauma

How ARFID Affects Mental Health?

Greater severity in the fear of aversive outcomes profile was uniquely associated with a higher likelihood of comorbid anxiety, obsessive-compulsive, and trauma-related disorders.

1.Exaggeration of Anxiety Disorders:

Obsessive-compulsive behaviour, generalised anxiety disorder, and social anxiety are the main symptoms associated with this condition. These anxiety disorders will strongly compromise mental health.

2.Depression Severity

People with a history of avoidant restrictive food intake disorder, especially those who have a hybrid history of other eating disorders, show an elevated prevalence of symptoms associated with depression and higher intentions to attempt suicide, in contrast to those without the disorder.

3.Isolation & social distancing

People who have social fears and avoid eating in public prefer social distancing, which results in isolation and strained relationships.

4.Neurodevelopmental Disorders Association:

It mostly develops with other neurodevelopmental disorders, which may include ADHD and autism spectrum disorder. These neurodevelopmental disorders and avoidant restrictive food intake disorder can contribute to a low quality of life and may complicate emotional regulation.

5.Correlation with physical health

Physical health is also compromised as a result of AFRID. Chronic malnutrition, weight loss, or severe nutritional deficiencies directly contribute to fatigue, irritability, and diminished cognitive function. Despite their nutritional impact, these behaviors are not driven by an expressed desire to lose weight but rather by the distressing experience associated with eating.

6.Comorbidity

People with this condition might have a low interest in eating or see eating as a chore and not something that’s enjoyed; it burdens them, which may cause distress and anxiety.

Does ARFID Cause Neuropsychological Changes?

Yes, people experiencing this condition may develop several neurologic and psychological conditions, such as, cognitive impairments, neuropathy, seizures, developmental delays, mood disorders, concentration and learning difficulties, headaches, reduced brain volume, sleep disturbances, syncope, eating disorders, personality changes (eg, irritability and emotional lability), social isolation, impaired social development and decreased overall quality of life, strained family relationships and increased stress, obsessive-compulsive disorder, and less involved in tasks.

The Complications of Avoidant Restrictive Food Intake Disorder

The medical problems occurring from avoidant restrictive food intake disorder can closely reflect those of anorexia nervosa, primarily due to malnutrition and nutritional deficiencies. Complications of this condition can be comprehensive, involving different body systems due to constant nutritional shortages.

Overall complications of this may include:

• Malnutrition
• Dehydration
• Electrolyte imbalance
• Anemia
• Low blood pressure
• Osteoporosis
• Cardiac arrest
• Delayed puberty
• Changes to your physical growth

Other Medical Complications

• Cardiopulmonary Complications: These complications include bradycardia, hypotension, cardiac arrhythmias, and many other cardiac complications
• Renal Complications: It may include acute kidney injury, electrolyte imbalances, and chronic kidney disease.
• Gastrointestinal Complications: it includesmedical complications specific to the gastrointestinal system.
• Endocrinological and Reproductive Complications: Reproductive and hormonal complications may also develop from AFRID, which includes growth hormone dysregulation, hypothalamic amenorrhea, and thyroid function abnormalities.

How Does ARFID Affect Daily Life?

It influences how you socialize, and it severely affects life. You may avoid seeing loved ones or participating in activities that are in the presence of food (family meals, dinner parties, etc). It causes difficulty in engaging in daily life because of shame, anxiety, or inconvenience. This will affect your relationships and can even distract you from work or school responsibilities.

Moreover, avoidant restrictive food intake disorder is also related to considerable individual, family, and social impairment, and medical effects can be life-threatening. It poses considerable risks to both physical and mental health, potentially resulting in malnutrition, growth impairments, and the necessity for nutritional intervention. Females may have amenorrhea, bradycardia in adults, prolonged QT interval on electrocardiogram, and electrolyte abnormalities such as hypokalemia.

ARFID in an adolescent male of normal weight demonstrated vitamin A, E, B12, D, K, and folate deficiencies as well as spinal cord degeneration secondary to his significantly restricted diet. Psychiatric comorbidities, including anxiety disorders, autism spectrum disorder, and attention deficit hyperactivity disorder (ADHD), are common among individuals with this condition.

Diagnosis and Treatment Approaches

Several diagnoses may present with distinct clinical features that suggest ARFID and specific clinical evaluations. A careful and thorough assessment is necessary to distinguish this condition from other medical, psychological, or psychiatric conditions before initiating treatment.

ARFID is a combination of two or more medical complications, including nutritional deficiencies, electrolyte abnormalities, bradycardia, gastrointestinal complications, amenorrhea, and bone loss. A healthcare provider evaluates the severity of the condition and then recommends treatments.

There is no evidence-based psychological treatment suitable for all forms of ARFID at this time. Several groups are currently evaluating the efficacy of new psychological treatments for ARFID. Some of them are listed below.

Cognitive Behavioral Therapy

CBT interventions for ARFID include regular eating, self-monitoring of food intake, exposure and response prevention, relaxation training, and behavioral experiments

The goal of CBT is to help patients achieve a healthy weight, resolve nutritional deficiencies, increase the variety of food, which includes multiple foods from each of the five basic food groups, eliminate dependence on nutritional supplements, and reduce psychosocial impairment.

Family-Based Therapy

Family-based therapy involves parents and caretakers. They are asked to support their children in increasing not only dietary volume, but also dietary variety through repeated exposure to novel foods.

Family-based therapy empowers family members to support the recovery of the patient in a home setting. A mental health professional provides parents and siblings with education about behaviors associated with the disorder. Removing blame and guilt, which raises anxiety, and encouraging parents to implement refeeding strategies.

Exposure Therapy

Exposure therapy is an evidence-based treatment that breaks the cycle of fear and avoidance. It works by gradually and safely exposing the patient to their phobia in a controlled, monitored setting. The idea is that slowly, over time, exposure can decrease feelings of anxiety and fear, thus reducing avoidance.

Exposure therapy can help ARFID patients in a few ways, including:

• Self-confidence: Exposure to fear foods or skipping eating disorder rituals can prove to the patient that they are capable of confronting their phobias and dealing with the anxiety.
• Emotional Regulation: Eating disorder patients can learn to tolerate fear and anxiety better and replace unhelpful thought patterns with more realistic, healthy beliefs related to the fear.
• Adaptation: Gradually, exposure can reduce anxiety and fear reactions to feared stimuli.
• Eradication of behaviors: Exposure can break the learned associations between phobias and negative outcomes over time.

Medications

In certain cases, medications can be proven useful and may be an immediate approach to dealing with this condition. As some medications increase craving, consideration should be given as a possible treatment for this. Moreover, antianxiety has also been proven beneficial in reducing anxiety, cognitive rigidity, and food-related beliefs that can contribute to this condition.

Note: Treatment might also include nutritional management with support from a dietician. You might also receive help for sensory problems.

How to Help Someone Who is Experiencing ARFID?

We can make efforts that aim to raise awareness about ARFID risk factors. Helping people who are extremely picky or avoid food and providing support to address these issues early to prevent the disorder’s advancement. Patient education initiatives may include information sessions, pamphlets, or online resources that outline ARFID’s symptoms.

Achieve Lasting Recovery at Renewed Mental Health Group

It’s a complex and challenging disorder that requires expert care. It is a serious condition that causes severe physical and emotional effects if left untreated. If you or any of your loved ones is experiencing avoidant restrictive food intake disorder, get professional help immediately.

At the Renewed Mental Health Group, we have a team of expert certified professionals who provide comprehensive and compassionate treatments. We offer a safe space where you feel comfortable and can talk about your issues without the fear of judgment. You can also get treatment virtually with our telepsychiatric treatments with ease.

Book your initial consultation today!

Final Thoughts

Picky eaters are people who avoid many new and familiar foods because they dislike their taste, smell, texture, or appearance. When it is severe, it can lead to weight loss or difficulty maintaining a healthy weight. It leads to nutritional deficiencies, dependence on supplements to get adequate nutrition or calories, or difficulty engaging in daily life because of shame. People who experience one or more of these consequences can be diagnosed with Avoidant/Restrictive Food Intake Disorder. Every individual struggling with ARFID deserves someone in their life to be on their side. So, try to educate others to better support someone in their life.