What this trial measures

• Teen quality of life as measured by Teen and parent-proxy report on PROMIS Pediatric Profile-37Baseline, Immediately Post-Intervention, 3 Month Follow-Up

  Anxiety, depressive symptoms, fatigue, pain interference, physical function-mobility, peer relationships, \& pain intensity

• Parent quality of life as measured by Parent PROMIS Adult Profile-43Baseline, Immediately Post-Intervention, 3 Month Follow-Up

  Parent anxiety, depression, fatigue, pain interference, physical function, sleep disturbance, and ability to participate in social roles and activities as well as a single pain intensity item

• Parent health-related quality of life as measured by Parent report PedsQL 2.0 Family Impact ModuleBaseline, Immediately Post-Intervention, 3 Month Follow-Up

  Parent impact of child health on quality of life

• Teen celiac disease health-related quality of life as measured by Teen self-report on Celiac Disease Quality of Life (CDLIFE)Baseline, Immediately Post-Intervention, 3 Month Follow-Up

  A validated measure of health-related quality of life in children ages 8-18 living with celiac disease in the United States. 22 items rated 1 (never) to 5 (almost always) for a total possible score ranging from 0-88, with a higher score indicating better health-related quality of life.

• Gluten-Free Diet Management (expert) as measured by Expert GFD Adherence Rating (SDE)Baseline, Immediately Post-Intervention, 3 Month Follow-Up

  Structured global rating by gluten-free diet expert based on dietary recall for potential sources of gluten using online GlutenFreeDiet program.

• Gluten-free diet management as measured by Teen & Parent-report Celiac Dietary Adherence TestBaseline, Immediately Post-Intervention, 3 Month Follow-Up

  Survey measure on symptoms and behavior associated with gluten-free diet management

• Gluten Immunogenic Peptides as measured by GlutenDetectBaseline, Weekly Intervention, Immediately Post-Intervention, 3 Month Follow-Up

  At-home Gluten Detective kit to detect gluten ingested within 24 hours in teen's urine or stool. Teens will be prompted via SMS text message and will be given a 24-hour window to complete the test and send a photo of the results.

• Gluten-Free Diet Experiences as assessed by qualitative interview about perceived QOL and GFD management experiencesBaseline, Immediately Post-Intervention, 3 Month Follow-Up

  Semi-structured qualitative interview about current experiences with GFD management for teen/parent.