Regular consumption of green tea, and particularly matcha, is said to improve memory and protect the brain against cognitive decline thanks to its active compounds, catechins.

noli's read

The community relies on animal studies to extrapolate cognitive benefits in humans, a common but scientifically precarious shortcut. It has been established by meta-analyses (e.g., Journal of Functional Foods) that catechins, particularly EGCG, possess antioxidant properties of interest for brain health. However, extrapolating dosages from mice to humans remains complex, as our metabolism processes these compounds differently. The point regarding the high EGCG concentration in matcha (Weiss et al., Journal of Chromatography A) is factually supported, but this does not automatically guarantee clinical improvement in memory. Large-scale, long-term randomized clinical trials are currently lacking to confirm a direct protective effect against cognitive aging in humans. In short, the potential is real, but direct therapeutic efficacy is overestimated in relation to current data. The community is generally receptive to the idea while maintaining a slight critical reserve regarding the extrapolation of results from studies on mice.

the sources

1. 1r/ScientificNutrition