Genetic Architecture of Avoidant/Restrictive Food Intake Disorder

Conditions

ARFID, Eating Disorders, Eating Disorders in Children, Eating, Picky

Brief summary

The goal of this observational study is to rapidly accelerate knowledge about the biology of avoidant and restrictive food intake disorder or ARFID in children ages 7-17 and in adults. The investigators will be evaluating the genetic and environmental origins of ARFID. Participants will be asked to answer questionnaires online and to submit a saliva sample for DNA using a kit that will be mailed to their home.

Aguilar MV, Giulumian GK, Rodriguez I, Baker JH, Surti PP, Dinkler L, Guintivano J, Johnson JS, MacDermod CM, Ortiz SN, Pisetsky EM, White JP, Micali N, Bulik CM, Thornton LM, Wu YK.

2026-04-26

10.1002/erv.70122

ARFID Genes and Environment (ARFID-GEN): study protocol.

Bulik CM, Micali N, MacDermod CM, Qi B, Munn-Chernoff MA, Thornton LM, White J, Dinkler L, Pisetsky EM, Johnson J, Devine KR, Ortiz SN, Silverman AE, Berthold N, Dumain A, Guintivano J, Halvorsen M, Crowley JJ.

2023-11-2113 citations

10.1186/s12888-023-05266-x

Interventions

None listed

Study design

Observational model

CASE_ONLY

Time perspective

CROSS_SECTIONAL

Eligibility

Sex/Gender

ALL

Age

7 Years to 99 Years

Healthy volunteers

No

Inclusion criteria

* Meet study criteria for ARFID * Be willing to submit a saliva sample * Have a US mailing address * English-speaking

Exclusion criteria

* Potential other eating disorders

Design outcomes

Primary

Measure	Time frame	Description
Case definitions	Baseline	Number of enrolled individuals who meet the case definition

Countries

United States

Outcome results