Evaluation of the effect of the relationship between diet and microbia on mental health

Introduction. The human body is home to hundreds of different types of microbes [bacteria, viruses, fungi], most of which are found in the gut. In recent years, studies have evaluated the impact of the gut microbiota on brain health, and there has been increasing emphasis on the role of dietary habits in supporting optimal mental health. Aim. In this study, it is aimed to review the studies on the effect of the relationship between the microbiota-gut-brain axis and nutrition on mental health. This study will guide us on which nutrients we should add to our diet for mental health. Methods. In this study, a narrative synthesis of observational studies covering diet, microbiota, nutrition and mental health was made using pubmed, sciencedirect and google scholar’s databases. Studies are included if they include the result of microbiota and mental health, diet and mental health, the effect of nutrition on mental health, food groups and its relationship with mental diseases. Overview. The regulation of the interaction between the gut and the brain through a healthy diet is important in the treatment of common mental disorders and in the prevention of disease. Conclusions. By changing nutritional habits, microbiota can be changed, mental health can be protected and mental disorders that may occur can be prevented. Healthy eating habits can be emphasized by working on more food and patient groups in this area.