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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.
The Center for Nutritional Psychology. (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/Share a nutritional psychology term with the CNP editorial team for consideration. Relevant submissions may be reviewed for future development and publication in the Encyclopedia of Nutritional Psychology.
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