This study examines whether gastrointestinal (GI) symptoms – such as abdominal pain, bloating, constipation, or diarrhoea – predict mental well-being differently in neurodivergent adults compared to neurotypical adults. Evidence shows neurodivergent individuals experience higher rates of GI symptoms and poorer mental well-being, but no study has yet examined whether the two are connected. Your participation helps build the evidence base for gut-targeted dietary support in health.