Early studies observe how certain species can take polyphenols from our diet and use them to interfere with the misfolding of proteins. Misfolded protein is one of the key markers of Alzheimer’s disease. Want to get a head start? Polyphenols are found in plant‐based foods and beverages, notably apples, berries, citrus fruit, plums, broccoli, cocoa, tea and coffee. Yum.
 Biagi, E., Candela, M., Fairweather-Tait, S., Franceschi, C., & Brigidi, P. (2012). Aging of the human metaorganism: the microbial counterpart. Age (Dordrecht, Netherlands), 34(1), 247–267. https://doi.org/10.1007/s11357-011-9217-5
 Wang, D., Ho, L., Faith, J., Ono, K., Janle, E. M., Lachcik, P. J., Cooper, B. R., Jannasch, A. H., D’Arcy, B. R., Williams, B. A., Ferruzzi, M. G., Levine, S., Zhao, W., Dubner, L., & Pasinetti, G. M. (2015). Role of intestinal microbiota in the generation of polyphenol-derived phenolic acid mediated attenuation of Alzheimer’s disease β-amyloid oligomerization. Molecular nutrition & food research, 59(6), 1025–1040. https://doi.org/10.1002/mnfr.201400544
 Williamson G. (2017). The role of polyphenols in modern nutrition. Nutrition bulletin, 42(3), 226–235. https://doi.org/10.1111/nbu.12278