The microbiome-gut-brain axis in nutritional neuroscience

Area of Science:

• Nutritional Neuroscience
• Microbiome Research
• Gut-Brain Axis Signaling

Background:

• Emerging evidence implicates the microbiome in mediating nutrition's effects on the gut-brain axis.
• The precise role of diet—whether moderating or mediating—in microbiota-gut-brain interactions remains unclear.
• Translational studies in humans are limited despite preclinical evidence linking gut microbiota to diet's impact on brain function.

Purpose of the Study:

• To review recent advances in nutritional neuroscience and microbiome research.
• To highlight the complex interplay between diet, microbiota, and brain function.
• To identify future research opportunities in this field.

Main Methods:

• Review of current scientific literature.
• Analysis of mechanistic evidence from in vitro, animal, and preclinical studies.
• Discussion of translational challenges and opportunities in human intervention studies.

Main Results:

• The microbiome is a critical regulator of nutrition's influence on gut-brain signaling.
• Evidence suggests a triangulating relationship between diet, microbiota, and brain function throughout life.
• Significant knowledge gaps exist regarding the translation of preclinical findings to human studies.

Conclusions:

• Further mechanistic and translational research is essential in nutritional neuroscience and microbiome studies.
• Understanding these interactions may inform strategies for neurological, neurodevelopmental, and psychiatric disorders.
• The field presents significant opportunities for future scientific exploration and clinical application.