A prebiotic supplement containing inulin and fructo-oligosaccharides boosts cognitive performance in older adults, indicating beneficial effects via the gut-brain axis.
“Inulin and fructo-oligosaccharides are among the most abundant prebiotics in the human diet, present in apples, bananas, legumes, and dietary supplement forms. Their fermentation by gut microbiota produces short-chain fatty acids, including acetate, propionate, and butyrate.”