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Gut Issues in Autism & ADHD: Why They Happen and How We Treat Them

Dr Stephen Wangen
|
May 5, 2026

If you or your child has ADHD or autism and struggles with gut issues, you’re not imagining it. These problems are incredibly common—and often completely overlooked or misunderstood by most doctors. I’m going to share with you how we approach digestive issues in these patients.

Over the years we’ve worked with many neurodivergent patients—people with ADHD, autism, and related conditions—who also struggle with complex digestive issues.

We’ve worked in people who’ve been diagnosed with:

• ADHD
• Autism spectrum disorder
• Sensory processing differences
• ARFID (Avoidant/Restrictive Food Intake Disorder)
• And other related conditions like POTS (Postural Orthostatic Tachycardia Syndrome) and mast cell activation issues

These individuals often have nervous systems that are more sensitive, more reactive, and more easily overwhelmed.

And that sensitivity doesn’t just affect the brain—it affects the gut in a very real way.

🔗 The Overlap Between the Brain and the Gut

The gut and nervous system are deeply connected.

So when someone has a hypersensitive or highly reactive nervous system, it’s very common to see:

• Abdominal pain
• Constipation or diarrhea
• Gas and bloating
• Food sensitivities
• Unpredictable digestion

We see this all the time.

And unfortunately, most people are told:

“It’s just part of autism.”
Or
“It’s just part of ADHD.”

That’s not a real answer.

⚠️ The Hidden Stress Factor

For neurodivergent individuals, gut symptoms aren’t just physical—they’re a major source of daily stress.

If your system is already easily overwhelmed, and now you add:

• Constant stomach discomfort
• Food reactions you can’t predict
• Urgency, bloating, or pain

…it becomes one more thing your body has to manage.

And when we reduce that digestive stress, another big thing usually happens:

The entire system calms down.

We’ve seen this over and over again.

Not because we’re treating ADHD or autism directly—but because we’re removing a major physiological stressor.

🍽️ Food Challenges Are Real (And Often Misunderstood)

This is where things get especially complicated.

Many neurodivergent patients struggle with:

• Strong food cravings that feel overpowering
• Sensory aversions to textures, smells, or tastes
• Very limited food choices
• Or becoming overly restrictive

Some are dealing with ARFID, where eating itself becomes difficult or stressful.

Others go online and try to “fix” things themselves—and end up overwhelmed with conflicting or inaccurate information. And I’ve seen this happen to many people when they talk with their doctor as well.

🚫 Why Diet Alone Doesn’t Solve This

A lot of people assume:

“Just fix the diet.”

But that’s rarely enough—and often not even possible without help.

Because:

• You can’t just eliminate foods when someone already has limited safe foods
• You can’t ignore cravings that feel almost neurological in nature
• And you can’t force a plan that doesn’t work with sensory needs

This is exactly why working with a doctor AND a dietician who both appreciate these issues is essential.

🧑‍⚕️ The Role of a Dietician (This Is Critical)

In our clinic, dieticians are a core part of care—not an afterthought.

They help:

• Expand food options safely
• Work with sensory preferences instead of against them
• Avoid unnecessary restriction
• Create realistic, sustainable plans
• Reduce anxiety around food

This is especially important in neurodivergent patients, because food is not just nutrition—it’s experience, comfort, and regulation.

🔬 How We Approach Treatment

We don’t repeat what you’ve already been through.

We don’t just label it.

And we don’t assume it’s “just part of the condition.”

We look for why the gut isn’t working properly.

That may involve:

• Microbiome imbalances
• Food-related immune reactions
• Digestive dysfunction
• Motility issues
• Or multiple overlapping factors

And yes—many of our neurodivergent patients have tried other doctors before finding us.

📈 What We’ve Seen in Practice

We’ve had success helping many patients in this category.

And when their gut improves, we often see:

• Less daily stress
• More comfort around eating
• Better tolerance of foods
• More predictable digestion
• And a noticeable improvement in overall quality of life

Again—not because we’re changing who they are.

But because we’re removing something that’s been putting constant pressure on their system.

💙 A Neurodivergent-Friendly Approach

This matters.

We understand:

• Sensory needs
• Communication differences
• Food challenges
• The need for flexibility and personalization

We’re not trying to force patients into a rigid system.

We adapt the care to the patient.

📞 Closing

If you or your child has ADHD, autism, or related challenges—and is also dealing with ongoing digestive problems like abdominal pain, constipation, diarrhea, gas, or bloating—

You don’t have to assume that’s just part of it.

There are likely real, treatable causes behind those symptoms.

Call our office at 206-317-5662 📞 or visit IBSTreatmentCenter.com to learn more about how we can help.

💬 Final Thought

Thank you for taking the time to watch this. If you found this video helpful, please give it a thumbs up 👍 and subscribe to my channel for more insight into your health.

And remember—take good care of your body 💙
It’s the only place you have to live.

Related Content:

Solving Abdominal Pain and Digestive Problems in Kids and Teens

How Childhood Antibiotics Can Cause Chronic Abdominal Pain Later in Life

Diet & IBS — What Actually Matters (And What Most People Get Wrong)

IBS in Children: Treatment, Cause, Signs and Symptoms

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