How Do Sensory Processing Differences Interact with GI Issues in Autism?

PostedDecember 18, 2025

UpdatedDecember 18, 2025

ByMy Patient Advice

Author: Hannah Smith, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Sensory differences and GI in autism are often interconnected. Many autistic individuals experience Sensory Processing differences, which can impact how their body responds to various stimuli, including food and digestion. These differences can exacerbate or contribute to gastrointestinal (GI) issues, such as digestion problems or food sensitivity, which are common in individuals with autism.

For example, an individual with heightened food sensitivity may experience discomfort or aversion to certain textures, tastes, or smells of food. This can lead to picky eating habits or difficulty with mealtime, which, over time, may contribute to digestion problems like constipation, bloating, or discomfort. The relationship between Sensory Processing and GI issues in autism is complex, as sensory sensitivities may affect the body’s ability to process and tolerate different foods.

Understanding this link is crucial for managing both Sensory Differences and GI issues, as addressing one can often help mitigate the other.

How Sensory Differences Affect GI Issues in Autism

Here’s how Sensory Processing differences and GI issues in autism interact:

Food sensitivities and aversions

Certain textures, tastes, or even the smell of food may cause discomfort or lead to refusal. Solution: Gradually introducing new foods with sensory-friendly textures and using visual supports or food schedules can help ease food acceptance.

Digestive problems linked to restrictive diets

Limited food choices due to sensory aversions can result in nutritional imbalances, leading to constipation or other GI concerns. Solution: Working with a dietitian familiar with autism can help incorporate sensory-friendly, nutrient-dense foods into the diet.

Stress-induced GI discomfort

Anxiety or sensory overload can also contribute to GI issues, such as stomach aches or digestive distress. Solution: Sensory integration therapy and mindfulness techniques can help reduce stress and improve digestion.

Visit providers like Autism Detect for advice on managing Sensory differences and GI in autism, and addressing digestion problems and food sensitivity.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Sensory Processing Differences.

Hannah Smith, MSc

Author

Hannah Smith is a clinical psychologist with a Master’s in Clinical Psychology and over three years of experience in behaviour therapy, special education, and inclusive practices. She specialises in Applied Behavior Analysis (ABA), Cognitive Behavioural Therapy (CBT), and inclusive education strategies. Hannah has worked extensively with children and adults with Autism Spectrum Disorder (ASD), ADHD, Down syndrome, and intellectual disabilities, delivering evidence-based interventions to support development, mental health, and well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.