I started looking into this after noticing my own focus wasn't what it used to be. The connection researchers are finding wasn't what I expected — and it changed how I think about cognitive wellness entirely.
What Researchers Are Finding
Published studies — including research in Nature Communications — have identified a biological communication system that appears to influence how well the brain forms memories, maintains focus, and processes information. What's surprising is where this system originates. It's not in the brain itself.
Specific strains of beneficial bacteria, along with certain natural compounds, appear to modulate this pathway in ways that early research finds encouraging. The video above explains the mechanism, the specific research, and why this approach is fundamentally different from conventional brain supplements.
Why This Is Different
Most cognitive supplements target the brain directly — with stimulants, nootropics, or isolated nutrients. But a growing body of peer-reviewed research suggests that the pathway influencing how brain cells communicate may be regulated by a system operating outside the brain entirely. If the research holds, it would explain why so many conventional approaches fall short.
The short video above walks through the published findings, the specific pathway, and what some people are doing differently as a result. It takes just a few minutes.
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Scientific references below are for educational purposes only. This is not medical advice. Always consult your healthcare provider before starting any new supplement, especially if you have existing health conditions or take medication.
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Scientific References
Huang SY, et al. Lactobacillus paracasei PS23 delays progression of age-related cognitive decline in senescence accelerated mouse prone 8 (SAMP8) mice. Nutrients. 2018;10(7):894.
Lee HJ, et al. Anti-amnesic effects of synbiotic supplementation containing Lactobacillus reuteri in colitis mice. Journal of Microbiology and Biotechnology. 2022;32(4):524-532.
Ni Lochlainn M, et al. Effect of gut microbiome modulation on muscle function and cognition: the PROMOTe RCT. Nature Communications. 2024;15:1859.
Guo Y, et al. Inulin supplementation ameliorated cognitive impairment via modulation of gut microbiota in a mouse model. Brain, Behavior, and Immunity. 2021;98:286-298.
Herrlinger KA, et al. Spearmint extract improves working memory in men and women with age-associated memory impairment. Journal of Alternative and Complementary Medicine. 2018;24(1):37-47.
Abdelhalim A. Effect of Mentha piperita on mental health issues of university students. Journal of Pharmacy & Pharmacognosy Research. 2021;9(1):49-57.
Hanafy DM, et al. Mentha longifolia phenolic extracts: antioxidant properties and role in managing oxidative stress and Alzheimer's disease. Antioxidants. 2020;9(7):631.
Kocsis T, et al. Probiotics have beneficial metabolic effects in patients with type 2 diabetes mellitus: a meta-analysis of randomized clinical trials. Scientific Reports. 2020;10(1):11787.