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ARFID Genes and Environment

To expand our understanding of extreme picky eating or selective eating by studying genetic and environmental causes of avoidant/restrictive food intake disorder (ARFID).

Age & Gender

  • 7 years ~ 99 years
  • Male, Female, Gender Inclusive


United States (Nationwide)

What will be asked of you

If you are an adult (18+) with AFRID: 1. Provide consent to take the eligibility questionnaire 2. Complete the eligibility questionnaire 3. If you are eligible, provide consent for the full study and your contact information 4. Complete a series of online questionnaire on your computer or smartphone. 5. Send us a saliva DNA sample with the pre-paid package we provide. If you are a parent of a child with ARFID: 1. Provide consent and help child with assent (agreement) forms 2. Complete eligibility questionnaire and contact information 3. Help your child with eligibility questionnaires (if necessary) 4. Complete the parent questionnaires 5. Send us a saliva DNA sample of your child with the pre-paid package we provide.


$25 amazon gift card

Total length of participation:
One time completion of surveys and provision of a saliva sample.

Looking for Specific Volunteers

Able to participate:

  • Your child (7-17) or you (adult 18+) has extreme picky eating or avoidant/restrictive food intake disorder (ARFID)
  • You have a United States mailing address

Not eligible if:

  • You or your child do not experience picky eating or avoidant/restrictive food intake disorder (ARFID)

Contact the Team

Visit Location

100% Remote (online, phone, text)

Additional Study Information

Principal Investigator

Cynthia Bulik
Psychiatry - Research

Study Type

Behavioral or Social

Study Topics

Chronic Conditions
Eating, Nutrition, and Metabolism
Genetics and Genetic Disorders
Mental and Emotional Health
Parents of Children

IRB Number




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