byEric W. Dolan

December 18, 2024

in Cognitive Science

A new study published in Nutritional Neuroscience examined how probiotic supplements, a prebiotic-rich diet, or their combination (synbiotic treatment) impact cognitive function in adults with low mood and dietary improvement potential. The randomized controlled trial provides tentative evidence that probiotic supplementation might improve working memory. However, the findings are preliminary, and the researchers emphasize the need for larger studies to confirm these effects.

In recent years, there has been increasing interest in the gut-brain axis and its potential link to cognitive performance. The gut-brain axis is a complex, two-way communication system between the digestive system and the brain, mediated through neural, hormonal, and immune pathways.

At the center of this connection is the gut microbiota—trillions of microorganisms residing in the digestive tract—that play a key role in influencing brain function and behavior. These microbes produce various metabolites, such as short-chain fatty acids and neurotransmitters, which can regulate inflammation, impact mood, and affect cognitive processes like memory and attention.

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