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Sigma Nutrition Radio

#602: Avoidant/Restrictive Food Intake Disorder (ARFID) – Megan Hellner, DrPH, RD & Katherine Hill, MD

Sigma Nutrition Radio

Danny Lennon

Health & Fitness, Nutrition

4.8 • 633 Ratings

🗓️ 21 April 2026

⏱️ 50 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

Avoidant/Restrictive Food Intake Disorder (ARFID) is an eating disorder diagnosis characterized by a persistent restriction or avoidance of food intake that results in clinically significant consequences (medical, nutritional, and/or psychosocial), but without the weight- and shape-driven psychopathology typical of anorexia nervosa and bulimia nervosa.

In this episode, Megan Hellner and Katherine Hill outline how ARFID presents across the lifespan, why it is frequently missed in routine healthcare, and what an evidence-informed assessment and treatment pathway can look like in practice.

A central theme is that ARFID is not synonymous with "picky eating" and not confined to any one body size. Patients may present at any point on the weight chart, including those who are weight-stable or in larger bodies, and the condition can begin in early childhood and persist into adulthood.

The episode also highlights ARFID in athletes and physically active people, where restricted dietary variety and/or low intake can contribute to low energy availability and RED-S-like presentations, sometimes without an obvious intent to lose weight.

Timestamps

  • [03:48] Interview start
  • [06:23] What is ARFID? DSM-5 definition vs "picky eating"
  • [09:36] Clinical red flags: when restriction becomes a disorder
  • [11:37] ARFID isn't always underweight: missed cases & diagnostic pitfalls
  • [16:46] ARFID presentation profiles: low interest, sensory sensitivity, fear
  • [18:59] Comorbidities & nutrition consequences
  • [25:16] Evidence-based ARFID treatment
  • [29:16] How to expand foods without pressure
  • [32:28] Weight restoration, stabilization, and long-term maintenance
  • [35:44] What research still needs
  • [38:16] Differential diagnosis & referral

Links/Resources

Transcript

Click on a timestamp to play from that location

0:00.0

Hello and welcome to Sigma Nutrition Radio. This is episode 602 of the podcast. My name is Danny Lennon.

0:07.5

You are very welcome to the podcast. Today we are going to be talking all about avoidant restrictive

0:13.7

food intake disorder or going by its acronym Arford. To go through this topic, I'm going to be

0:20.1

talking to Dr. Megan Helner and Dr.

0:23.1

Catherine Hill, who have done extensive work in this area, see a lot of patients presenting with

0:30.6

Arfid, which is maybe one of the lesser-known eating disorder diagnoses and maybe is sometimes

0:37.1

overlooked and also has a paucity of data

0:40.8

compared to some of the other eating disorders. And so having more awareness and more information

0:46.9

about this particular topic will hopefully be particularly useful. Now, as the name of the disorder

0:53.3

suggests, this is something that is characterized

0:56.2

by persistent restriction or avoidance of specific foods or food more broadly. But within that,

1:02.4

there's a lot of nuances that will get into that really give us a complete picture of its definition,

1:08.8

its diagnosis, and how it overlaps with some other conditions, as well as

1:14.2

where it is distinct from other terms that sometimes get loosely attributed to some of these

1:20.8

characteristics. Dr. Helner and Dr. Hill are the founders of Athlete MD, which provides medical

1:27.1

and nutrition support for athletes,

1:29.4

and within that has a focus on eating disorders. And both of their backgrounds speak to this.

1:35.7

Dr. Helner has worked as a registered dietitian and clinician in the eating disorder space

1:41.5

for more than a couple of decades with a dual speciality in both

1:45.1

eating disorders and sports nutrition. She also has a master's in public health and a doctorate

1:50.6

in public health preventive care. Dr. Hill is a board certified physician and has specialized

1:56.1

expertise in eating disorders as well as relative energy efficiency in sport. And after completing her

...

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