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The microbiota-gut-brain axis (MGBA) is a complex bidirectional communication network linking the gut microbiota, gastrointestinal system, and central nervous system through neural, endocrine, immune, and metabolic pathways, significantly influencing physiological state, mood, cognition, behavior, and appetite regulation—making it a foundational mechanism in nutritional psychology, where dietary intake shapes mental health outcomes through its effects on the gut ecosystem.
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Editorial responsibilityHow to cite this entry
Ephi Lu. (2026). Microbiota-Gut-Brain Axis (MGBA). In Encyclopedia of Nutritional Psychology. The Center for Nutritional Psychology.
https://www.nutritional-psychology.org/encyclopedia/microbiota-gut-brain-axis-mgba/Know a term that belongs in the Encyclopedia?
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