Up to 70% of people with autism experience GI symptoms, and researchers are uncovering profound differences in gut microbiome composition. Microbiome therapies targeting autism are among the most closely watched trials in the field.
How Autism Spectrum & the Gut relates to gut health
Common Symptoms
GI symptoms (constipation, diarrhea)
Abdominal pain
Food selectivity and sensory sensitivities
Behavioral changes linked to GI discomfort
How the Microbiome is Involved
Multiple studies have found that children with autism have significantly altered gut microbiomes — including lower Prevotella, Coprococcus, and Unclassified Veillonellaceae. These bacteria help produce short-chain fatty acids that support brain function and reduce neuroinflammation. The gut-brain connection in autism is an active, fast-moving area of research with parent communities closely watching trial outcomes.