The relationship between dietary patterns and neuroinflammation

Area of Science:

• Neuroscience
• Immunology
• Nutrition Science

Background:

• Dietary patterns significantly influence immunometabolic balance and central nervous system (CNS) health.
• Neuroinflammation, linked to microglial activation and pro-inflammatory mediators, is a common factor in neurological and psychiatric disorders.
• The shift towards Western diets has disrupted neuroimmune homeostasis, promoting a pro-inflammatory brain environment.

Purpose of the Study:

• To explore the role of dietary patterns in modulating neuroinflammation.
• To investigate how nutritional strategies can counteract diet-induced neuroinflammation.
• To highlight the potential of dietary interventions for brain health.

Main Methods:

• Review of preclinical and early clinical evidence on dietary patterns and neuroinflammation.
• Analysis of the impact of Western vs. evolutionarily adapted diets on the gut-brain axis.
• Examination of specific dietary approaches like plant-based, DASH, and MIND diets.

Main Results:

• Western diets promote a pro-inflammatory brain environment via gut dysbiosis and systemic inflammation.
• Neuroprotective diets (e.g., plant-based, DASH, MIND, time-restricted) show potential in reducing microgliosis and inflammation.
• These diets may improve gut microbiota composition and enhance gut-brain communication.

Conclusions:

• Dietary patterns are critical modulators of neuroinflammation and brain health.
• Nutritional strategies offer a promising, feasible approach to mitigate neuroinflammation.
• Further large-scale clinical validation is required to confirm the efficacy of these dietary interventions.