Diet and the microbiota - gut - brain-axis: a primer for clinical nutrition

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Abstract

Purpose of reviewDiet is an essential modulator of the microbiota-gut-brain communication in health and disease. Consequently, diet-induced microbiome states can impact brain health and behaviour. The integration of microbiome into clinical nutrition perspectives of brain health is sparse. This review will thus focus on emerging evidence of microbiome-targeted dietary approaches with the potential to improve brain disorders.Recent findingsResearch in this field is evolving toward randomized controlled trials using dietary interventions with the potential to modulate pathways of the microbiota-gut-brain-axis. Although most studies included small cohorts, the beneficial effects of Mediterranean-like diets on symptoms of depression or fermented foods on the immune function of healthy individuals shed light on how this research line can grow. With a clinical nutrition lens, we highlight several methodological limitations and knowledge gaps, including the quality of dietary intake information, the design of dietary interventions, and missing behavioural outcomes.SummaryFindings in diet-microbiome-brain studies can have groundbreaking implications in clinical nutrition practice and research. Modulating brain processes through diet via the gut microbiota raises numerous possibilities. Novel dietary interventions targeting the microbiota-gut-brain-axis can offer various options to prevent and treat health problems such as mental disorders. Furthermore, knowledge in this field will improve current nutritional guidelines for disease prevention.

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Ribeiro, G., Ferri, A., Clarke, G., & Cryan, J. F. (2022, November 1). Diet and the microbiota - gut - brain-axis: a primer for clinical nutrition. Current Opinion in Clinical Nutrition and Metabolic Care. Lippincott Williams and Wilkins. https://doi.org/10.1097/MCO.0000000000000874

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