Gut-brain axis in Attention Deficit Hyperactivity Disorder (ADHD): A narrative review of the links between gut microbiota and ADHD pathophysiology

Key Points

• ADHD is linked to variations in gut microbiota composition, indicating possible connections to disease mechanisms.
• Notably, alterations in bacterial diversity may influence neurotransmitter levels in individuals with ADHD.
• Narrative review examined existing literature on gut-brain interactions related to ADHD pathology and gut health.
• Findings suggest underlying biological pathways in ADHD could be modulated by gut microbiota, highlighting new therapeutic avenues.