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Relationship between diet, the gut microbiota, and brain function.

Anouk C Tengeler1, Tamas Kozicz1,2, Amanda J Kiliaan1

  • 1Department of Anatomy, Radboud university medical center, Center for Medical Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Preclinical Imaging Center PRIME, Nijmegen, the Netherlands.

Nutrition Reviews
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Summary

The gut microbiota significantly impacts brain function. Nutritional interventions targeting gut microbes may offer therapeutic strategies for mental and physical health disorders.

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Area of Science:

  • Microbiology
  • Neuroscience
  • Nutrition Science

Background:

  • The human intestinal microbiota, composed of trillions of microorganisms, influences host physiology, including brain function.
  • Gut microbial dysbiosis is linked to metabolic, inflammatory, neurodevelopmental, and neurodegenerative disorders.
  • Nutrition is a critical factor shaping gut microbiota composition throughout life, impacting brain structure and function.

Purpose of the Study:

  • To review the influence of the gut microbiota on brain function.
  • To explore how external factors, particularly nutrition, affect gut microbial composition and, consequently, brain health.
  • To examine the therapeutic potential of nutritional components for modulating gut microbiota and improving mental and physical disorders.

Main Methods:

  • Literature review of studies investigating the gut-brain axis.
  • Analysis of research on the impact of diet on gut microbial composition.
  • Synthesis of findings on the relationship between gut microbiota, nutrition, and brain function.

Main Results:

  • The gut microbiota plays a crucial role in various physiological processes, including brain development and function.
  • Dietary interventions can alter gut microbial composition, suggesting a modifiable pathway for influencing brain health.
  • Disruptions in the gut microbiota are associated with a range of neurological and psychiatric conditions.

Conclusions:

  • The gut microbiota is a key mediator between nutrition and brain function.
  • Targeting the gut microbiota through nutritional strategies presents a promising avenue for therapeutic interventions in neurological and psychiatric disorders.
  • Further research into the gut-brain axis and the role of specific nutrients is warranted.