I don't like tea that much so I'm sticking to coffee as dementia prevention.
Coffee May Lower Your Risk of Dementia Feb. 2013
The latest here:
Tea consumption reduces the incidence of neurocognitive disorders: Findings from the Singapore longitudinal aging study
The journal of nutrition, health & aging volume 20, pages 1002–1009 (2016)
Abstract
Objectives
To examine the relationships between tea consumption habits and incident neurocognitive disorders (NCD) and explore potential effect modification by gender and the apolipoprotein E (APOE) genotype.
Design
Population-based longitudinal study.
Setting
The Singapore Longitudinal Aging Study (SLAS).
Participants
957 community-living Chinese elderly who were cognitively intact at baseline.
Measurements
We collected tea consumption information at baseline from 2003 to 2005 and ascertained incident cases of neurocognitive disorders (NCD) from 2006 to 2010. Odds ratio (OR) of association were calculated in logistic regression models that adjusted for potential confounders.
Results
A total of 72 incident NCD cases were identified from the cohort. Tea intake was associated with lower risk of incident NCD, independent of other risk factors. Reduced NCD risk was observed for both green tea (OR=0.43) and black/oolong tea (OR=0.53) and appeared to be influenced by the changing of tea consumption habit at follow-up. Using consistent nontea consumers as the reference, only consistent tea consumers had reduced risk of NCD (OR=0.39). Stratified analyses indicated that tea consumption was associated with reduced risk of NCD among females (OR=0.32) and APOE e4 carriers (OR=0.14) but not males and non APOE e4 carriers.
Conclusion
Regular tea consumption was associated with lower risk of neurocognitive disorders among Chinese elderly. Gender and genetic factors could possibly modulate this association.
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