Trumpet Behavioral Health Joins the BlueSprig Family of Companies! Read More

Evaluating the GFCF Diet - Trumpet Behavioral Health

Evaluating the GFCF Diet


facebook icon linkedin icon twitter icon email icon
Conclusive evidence used in reference to this blog is derived from scholarly journal article “The Gluten-Free, Casein-Free Diet and Autism: Limited Return on Family Investment,” taken from the ‘Journal of Early Intervention’ 2013 35:3, published online April 9, 2013. Reference available at the bottom of the post.

Team members at Trumpet Behavioral Health frequently receive questions about Gluten-Free Casein Free Diet (GFCF), as well as stories from families who have tried this approach. We’ve assembled this blog to provide a general overview of GFCF as a whole, as well as highlight some important points about the diet itself.

What is a GFCF Diet?

iStock_000009354360_Large (2)

Quite simply, a GFCF diet is one that eliminates dietary intake of the naturally occurring proteins gluten (found most often in wheat, barley, rye, and commercially available oats), and casein (found most often in milk and dairy products).

The first purported connections made between diet and mental illness came about in the 1960s from Dr. Francis Curtis Dohan, a research physician and endocrinologist.

Why is the diet so prominent?

GFCF diets are utilized by 50% of families of a child with ASD. There are a number of reasons for the popularity of the diet, including:

Child Eating Is there science backing an effectiveness of the GFCF diet?

Several theories exist which suggest that a reduction of behaviors related to ASD may have a connection with the GFCF diet. Two theories include the opioid-excess theory of autism and gastrointestinal (GI) difficulties.

The referenced article from ‘Journal of Early Intervention’ recommends that children be tested for food allergies/sensitivities and celiac disease in order to appropriately recommend a diet which may align with their specific needs.

What are the drawbacks to the diet?Young Girl Yummy Cake

As with any proposed treatment, a cost-benefit analysis is important to consider. In addition to reviewing the literature to determine any empirically based benefits to implementing this elimination diet, the Journal of Early Intervention article outlines a few potential drawbacks to doing so as well. These include:

Final conclusion

Results of the article concluded that through the investigation of five well-controlled studies, the positive effects on behavior for individuals with Autism by implementing a GFCF diet were inconclusive. The research conducted for this article did not support the opioid-excess theory. It is recommended that families and caregivers of individuals with ASD prioritize evidence-based interventions when deciding what approaches to take. The GFCF diet has not been shown to have sufficient scientific or empirical support for the reduction of behaviors with individuals with Autism. However, it is recommended that children to be tested for celiac disease or food allergies and sensitivities as diet change may help individuals who test positive for such concerns.


 The Gluten-Free, Casein-Free Diet and Autism: Limited Return on Family Investment

Sarah Hurwitz

Journal of Early Intervention 2013 35:3 originally published online 9 April 2013

DOI: 10.1177/1053815113484807

Written by Joshua Sleeper, MBA, BCBA

Joshua Sleeper, Chief Executive Officer (CEO) of Trumpet Behavioral Health, started in the field of Applied Behavior Analysis (ABA) over 20 years ago. In college, he began working as a part-time therapist for a school district in California. There, he...

Read Full Bio

Ready to get Started

We’re here for you.

Our Mission

Expanding Worlds. Enriching Lives. Client Centered. Team Member Focused.

© 2023 ABA Treatment | Trumpet Behavioral Health. All rights Reserved. | Privacy Policy