Food & Mood explores how the gut communicates with the brain, and why mood often feels physical before it feels psychological. We unpack the gut–brain axis through vagal signalling, immune pathways, metabolism, and the microbiome, using research anchors rather than wellness narratives. The focus is not control or perfection, but baseline: the internal setting that shapes patience, clarity, and resilience. This episode is for people living with thin margins, short sleep, chronic input, and quiet overload. It offers a way to work with the system rather than against it, using small, realistic experiments instead of identity-level change. If this resonates, this one’s for you. Topics: food and mood, gut brain axis, vagus nerve, microbiome, inflammation, stress, baseline. What this episode is not – Not nutritional advice – Not a mental health diagnosis – Not a productivity hack What it is – A conditions-based way to understand mood – A bridge between psychology and physiology – A starting point for experimentation, not optimisation Breit, S., Kupferberg, A., Rogler, G., & Hasler, G. (2018). Vagus nerve as modulator of the brain–gut axis in psychiatric and inflammatory disorders. Frontiers in Psychiatry, 9, 44. https://doi.org/10.3389/fpsyt.2018.00044 Carabotti, M., Scirocco, A., Maselli, M. A., & Severi, C. (2015). The gut–brain axis: Interactions between enteric microbiota, central and enteric nervous systems. Annals of Gastroenterology, 28(2), 203–209. Cryan, J. F., & Dinan, T. G. (2012). Mind-altering microorganisms: The impact of the gut microbiota on brain and behaviour. Nature Reviews Neuroscience, 13(10), 701–712. https://doi.org/10.1038/nrn3346 Schmidt, K., Cowen, P. J., Harmer, C. J., Tzortzis, G., Errington, S., & Burnet, P. W. J. (2015). Prebiotic intake reduces the waking cortisol response and alters emotional bias in healthy volunteers. Psychopharmacology, 232(10), 1793–1801. https://doi.org/10.1007/s00213-014-3810-0 Wastyk, H. C., Fragiadakis, G. K., Perelman, D., Dahan, D., Merrill, B. D., Yu, F. B., Topf, M., Gonzalez, C. G., Van Treuren, W., Han, S., Robinson, J. L., Elias, J. E., Sonnenburg, J. L., & Gardner, C. D. (2021). Gut-microbiota-targeted diets modulate human immune status. Cell, 184(16), 4137–4153.e14. https://doi.org/10.1016/j.cell.2021.06.019