Consuming harmless bacteria without acute symptoms still produces physiological effects
Is it true that consuming harmless bacteria without acute symptoms still produces physiological effects?
Yes. Consuming harmless bacteria and probiotics influences host physiology, modulating metabolic pathways, immune function, and the gut-brain axis even in the absence of acute illness.
Verdict: SUPPORTED · 4 sources for, 0 against · Last checked
The retrieved papers consistently demonstrate that commensal and probiotic bacteria actively modulate host immune responses, metabolism, and neural signaling (the gut-brain axis). Therefore, consuming harmless bacteria produces measurable physiological effects, fully supporting the claim.
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Cryan, J. F., O’Riordan, K. J., Cowan, C. S., Sandhu, K. V., Bastiaanssen, T. F. S., Boehme, M., Codagnone, M. G., Cussotto, S., Fülling, C., Golubeva, A. V., Guzzetta, K. E., Jaggar, M., Long-Smith, C. M., Lyte, J. M., Martin, J., Molinero-Perez, A., Moloney, G. M., Morelli, E., Morillas, E., O’Connor, R., Cruz-Pereira, J. S., Peterson, V. L., Rea, K., Ritz, N. L., Sherwin, E., Spichak, S., Teichman, E. M., Wouw, M. v. d., Ventura‐Silva, A. P., Wallace-Fitzsimons, S. E., Hyland, N. P., Clarke, G., & Dinan, T. G. (2019). The Microbiota-Gut-Brain Axis. doi.org. https://doi.org/10.1152/physrev.00018.2018
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Singh, R., Chang, H., Yan, D., Lee, K. M., Uçmak, D., Wong, K., Abrouk, M., Farahnik, B., Nakamura, M., Zhu, T. H., Bhutani, T., & Liao, W. (2017). Influence of diet on the gut microbiome and implications for human health. doi.org. https://doi.org/10.1186/s12967-017-1175-y
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Mazziotta, C., Tognon, M., Martini, F., Torreggiani, E., & Rotondo, J. C. (2023). Probiotics Mechanism of Action on Immune Cells and Beneficial Effects on Human Health. doi.org. https://doi.org/10.3390/cells12010184
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Chandrasekaran, P., Weiskirchen, S., & Weiskirchen, R. (2024). Effects of Probiotics on Gut Microbiota: An Overview. doi.org. https://doi.org/10.3390/ijms25116022
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What does the evidence say?
The retrieved papers consistently demonstrate that commensal and probiotic bacteria actively modulate host immune responses, metabolism, and neural signaling (the gut-brain axis). Therefore, consuming harmless bacteria produces measurable physiological effects, fully supporting the claim.
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