Effects of Soluble Corn Fiber Consumption on Executive Functions and Gut Microbiota in Middle to Older Age Adults: A Randomized Controlled Crossover Trial.

J Nutr · 2026 · PMC13197951 · PMID 41825740

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did not reach statistical significanceno p-value reported

In this study, fecal SCFA concentration differences did not reach statistical significance; however, their directional changes align with prior dietary fiber interventions and remain plausible candidates for gut-brain signaling, given their ability to cross and modulate the blood-brain barrier’s structural integrity [ 34 , 35 , [113] , [114] , [115] , [116] ].

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