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What is the relationship between the microbiota and mental health?

Marina Llobet, nutricionista Hospital Sant Joan de Déu Barcelona
Marina Llobet Garces
Dietitian nutritionist. Endocrinology Service. Diabetes Unit and Obesity Unit.
Hospital Sant Joan de Déu Barcelona

The gut microbiota directly influences the brain through the gut-brain axis. This axis connects the central nervous system to the digestive tract via neurological pathways, including the vagus nerve, as well as immunological and endocrine pathways, influencing cognition and behavior through neurotransmitters such as serotonin, dopamine, and GABA.

To promote a healthy gut microbiota, ensure you consume fruits, vegetables, legumes, fermented foods, and nuts , and minimize your intake of sweeteners, ultra-processed foods, etc. Furthermore, digestive discomfort can create a state of ongoing unease that impairs concentration and sleep , increases fatigue and irritability, and ultimately hinders emotional well-being.

Anna Bach-Faig

NUTRALiSS Researcher. Director of the Master's Program in Healthy and Sustainable Food
Universitat Oberta de Catalunya
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Marina Llobet, nutricionista Hospital Sant Joan de Déu Barcelona
Marina Llobet Garces
Dietitian nutritionist. Endocrinology Service. Diabetes Unit and Obesity Unit.
Hospital Sant Joan de Déu Barcelona