Story at-a-glance Probiotics may influence brain function through the gut-brain axis, offering benefits for neurodegenerative diseases like Alzheimer's and Parkinson's by improving gut health and reducing inflammation Studies suggest a link between gut health and cognitive function, indicating that an improved gut microbiome enhances mental health and may reduce inflammation associated with neurodegeneration Research indicates that probiotics could play a role in managing Alzheimer's and Parkinson's, offering a noninvasive treatment option that helps slow or reverse cognitive decline Biologically, the action of probiotics involves several interconnected pathways. By restoring a healthy balance of gut bacteria, probiotics reduce the production of harmful substances like lipopolysaccharides (LPS) that trigger inflammation in the brain Further studies are needed to confirm the long-term benefits of probiotics in neurodegenerative disease management, emphasizing the importance of continued research in this area