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Comparing Two Diets for Children with Autism and Stomach Symptoms

Compares a gluten-free casein-free diet with the Feingold diet in children with autism.

Key facts

Who runs it
Aydin Adnan Menderes University
Where
Aydin, TürkiyeSee the site
Trial code
Registry title
Different Dietary Practices in Children with Autism Spectrum Disorder
Status
Enrolling by invitation
People taking part
45 people, planned
Started
Feb 2025
Planned end
Jul 2026
Type of study
Interventional, 3 groupsOne group gets no study treatment, for comparison.
Treatments tested
  • Different Dietary Practices
Record updated
28 February 2025

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for children with autism aged 3 to 10 who are registered at Efeler Autism Life Center in Aydın province. It compares two diets.

Age
3 to 10 years
Sex
Boys and girls can both join.
Disease stage
Children with autism spectrum disorder. For the gluten-free casein-free diet, children must have stomach and gut complaints.
Earlier treatment
Children must not have followed a gluten-free, gluten-free casein-free or lactose-free diet before (for that diet). They must not have followed the Feingold diet before (for that diet).

Main reasons for not taking part

  • Celiac disease or lactose intolerance (for the gluten-free casein-free diet)
  • Diagnosis of attention deficit and hyperactivity disorder (for the Feingold diet)
  • Any food allergy (for the Feingold diet)
  • Any chronic disease or any psychiatric disease
  • Breastfed child, or not following the diet or not answering the survey

The registry criteria, word for word

Show all 10 criteriaShow less

Who can take part

  • The criteria for inclusion for the gluten-free-casein-free diet are as follows:
  • Not having diseases such as celiac, lactose intolerance
  • Not having previously applied a gluten-free diet, gluten-free casein-free diet, lactose-free diet
  • Having gastrointestinal complaints; The criteria for inclusion for the Feingold Diet are as follows:
  • Not having been diagnosed with attention deficit and hyperactivity disorder
  • Not having previously taken the Feingold diet
  • Not having any food allergies

Who cannot take part

  • The patient has any chronic disease
  • The patient has any psychiatric disease
  • The patient is breastfed

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 3 and 10 years old?

Where in Türkiye

  • Aydin province Efeler Autism Life CenterAydin, TürkiyeNo longer taking part

About the trial

What the trial wants to find out

The aim of this study is to investigate the effects of gluten-free casein-free diet and feingold diet on gastrointestinal system (GI) symptoms , eating behavior and quality of life in children with autism spectrum disorder. Research questions are below:

Read full original descriptionShow less

Is there a difference in the effects of a gluten-free-casein-free diet and the Feingold Diet on GI symptoms? Is there a difference in the effects of a gluten-free-casein-free diet and the Feingold Diet on eating behavior? Is there a difference in the effects of a gluten-free-casein-free diet and the Feingold Diet on quality of life?

The 3 groups in the trial

  • Gluten-Free-Casein-Free DietTreatment being tested

    The Gluten-free Casein-free diet is one of the most researched diets for Autism Spectrum Disorder. This diet is based on the elimination of foods containing gluten and casein. In this arm, children between the ages of 3 and 10 will be subjected to a Gluten-free-Casein-free diet for 12 weeks. Children will be controlled for compliance with the diet every two weeks.

    Treatment: Different Dietary Practices

  • Feingold DietTreatment being tested

    The Feingold Diet was originally developed for Attention Deficit and Hyperactivity Disorder, it is thought to be effective in symptomatic treatment due to enzyme deficiency in children with Autism Spectrum Disorder, but there are not enough studies on it. The Feingold Diet is one of the most researched diets for Autism Spectrum Disorder. This diet is based on the elimination of foods containing gluten and casein. In this arm, children between the ages of 3 and 10 will be subjected to a the Feingold Diet diet for 12 weeks. Children will be controlled for compliance with the diet every two weeks.

    Treatment: Different Dietary Practices

  • ControlNo study treatment, for comparison

    the arm receives no intervention during the study. (CONTROL GROUP). Children in this group will be monitored every 2 weeks for 12 weeks.

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Evaluation of the Effects of Different Dietary Practices on Quality of Life and Eating Behavior in Children with Autism Spectrum Disorder
Plain-language title
Comparing Two Diets for Children with Autism and Stomach SymptomsGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 12 November 2026.
Fit questions
Built from NCT06852027, who can take part
Record updated
28 February 2025