The diet-microbiome tango: how nutrients lead the gut brain axis

Area of Science:

• Neuroscience
• Microbiology
• Nutrition Science

Background:

• Nutrients and the gut microbiome significantly influence brain development and function.
• The precise mechanisms linking gut microbes to brain health and disease are still being elucidated.

Purpose of the Study:

• To propose a unifying framework for understanding how gut microbes affect host brain function.
• To highlight the central role of diet-microbiome interactions in mediating these effects.

Main Methods:

• Conceptual review and synthesis of existing research on nutrient-microbiome-host interactions.
• Analysis of mechanisms by which gut microbes influence brain function.

Main Results:

• Dietary nutrients are altered by the microbiome, and microbes synthesize psychoactive metabolites from them.
• Diet composition is a major factor modulating gut microbiome structure, influencing brain function.

Conclusions:

• Nutrient-microbiome-host interactions provide a comprehensive model for the gut-brain axis.
• Understanding these interactions is crucial for addressing brain health and disease.