It's great you're looking into the gut-brain connection! Recent research indicates that gut imbalances can disrupt important processes, like the tryptophan pathway, potentially leading to reduced serotonin levels, which can impact behavior.

Interestingly, GI issues like constipation affect over 40% of autistic individuals and can correlate with increased stress and irritability. Some studies, like Dr. James Adams' Microbiota Transplant Therapy (MTT) trials, have even shown significant improvements in both gut health and autism symptoms.

For practical steps, consider focusing on tryptophan-rich foods and consulting specialists for personalized nutrition plans. You can also explore emerging therapies like MTT with your provider. There's a webinar available with Dr. Kara Gross Margolis discussing serotonin as a gut-brain link that you may find helpful.