This is an answer I get from the non-profit site of www.Keyaide.ai, which is precisely designed to help in answering this type of question:

Short answer: there’s no strong, proven association—but there are some nuances that often get flattened in online discussions.

What the research shows
• Celiac disease is not significantly more common in autistic people than in the general population, according to most large, well-designed studies.
• Likewise, autism (including what used to be called Asperger’s syndrome) is not more prevalent among people with celiac disease.
• Early small studies hinted at a link, but larger population studies have not confirmed it.

So from an evidence standpoint, there’s no clear causal or epidemiological connection.

Where the confusion comes from

A few things muddy the waters:
1. Gastrointestinal issues are more common in autistic people
Autistic individuals report higher rates of GI symptoms (abdominal pain, constipation, diarrhea), but most of these are not celiac disease. They’re often functional GI disorders, food sensitivities, or stress-related gut issues.
2. Gluten-free diets sometimes improve behavior—but not because of autism itself
• If someone does have undiagnosed celiac disease or non-celiac gluten sensitivity, removing gluten can improve:
• pain
• sleep
• irritability
• attention
• That improvement can look like a change in “autism symptoms,” but it’s really relief from physical distress.
3. The “opioid-excess” / gluten–casein theory
This was popular years ago, suggesting gluten or casein peptides affect the brain in autism. It hasn’t held up scientifically and is no longer considered a solid explanation.

Clinical takeaway
• Routine celiac screening is not recommended for autism alone.
• Testing is appropriate if someone (autistic or not) has:
• chronic GI symptoms
• poor growth or weight loss
• iron deficiency anemia
• family history of celiac disease

About gluten-free diets
• A gluten-free diet is essential for celiac disease.
• For autism without celiac disease, evidence that gluten-free diets improve core autistic traits is weak and inconsistent.
• Unnecessary restriction can increase:
• nutritional deficiencies
• food anxiety
• stress around eating

Bottom line
• No strong association between celiac disease and autism/Asperger’s.
• GI symptoms deserve real medical attention, not assumptions.
• Dietary changes should be driven by diagnosed conditions or clear individual responses, not blanket claims.

If you’re asking from a personal or clinical angle (yourself, a patient, a child), I can help you think through when testing makes sense or how to evaluate diet changes safely.

KeyAide - Free AI Support for Caregivers of Neurodivergent Children

https://www.Keyaide.ai

I'm not sure of what age your child is but there's something called BOCES that kids can go to while still in high school. They also have programs for adults who want to learn a particular trade as well after high school-alternative to college. I don't know if this even exists in your state but if you go to BOCES here in Ny on the website then you can see what they do and if they have something similar in your area. You can also contact the Autism Society -they are helpful and will let you know what's available in your area.

https://researchautism.org/educators/educator-r...

https://www.joincoralcare.com/blog/part-ii-esse...

Las Vegas offers diverse autism resources, including therapy providers like Autism Behavior Services, Inc. (ABSI) for ABA therapy, support groups such as TACA Las Vegas for parents and GoodFriends for young adults, specialized schools like New Horizons Academy, and broader help from organizations like Autism Speaks and the Autism Society, covering advocacy, events, & national support. Financial aid, employment support, & developmental resources are also available through state and federal channels.
Local Support & Therapy
TACA Las Vegas (The Autism Community in Action): Parent-led support, advocacy, and awareness.
RAD Las Vegas: Offers after-school, day, and summer camps.
Autism Behavior Services, Inc. (ABSI): Provides ABA therapy, 1:1 support, and telehealth.
New Horizons Academy: A tuition-based school for students with high-functioning autism.
GoodFriends & LV Young Adult HF Autism/LD Meetup: Support groups for young adults.
National Organizations with Local Presence
Autism Speaks: Offers a comprehensive resource guide, advocacy, and an Autism Response Team.
Autism Society: Provides a national helpline and local affiliate support.
Center for Autism and Related Disorders (CARD®): Offers evidence-based treatment and care.
Financial & Employment Resources
Nevada Resources: Federal benefits like SSI/SSDI and Medicaid waivers may be available; Purple provides info on benefits.
Autism Speaks: Lists resources for employment, housing, and financial aid in its guide.
Finding More Help
Autism Speaks Resource Guide: Search for local autism-friendly services, therapists, and events in your community.
Ask Your Doctor: GPs or assessment teams can refer to specialists like occupational or speech therapists.

Autism Resources for Teachers: Effective Classroom Support

https://www.joincoralcare.com/blog/part-ii-essential-autism-resources-for-teachers-tools-for-effective-classroom-support

Educator Resources | Organization for Autism Research

https://researchautism.org/educators/educator-resources/