JNHA: Clinical Neurosciences

The journal of nutrition, health & aging

, Volume 16, Issue 1, pp 31-34

First online:

Tea and cognitive health in late life: Current evidence and future directions

  • J. SongAffiliated withDepartment of Psychiatry, Shengli Hospital of Shengli Oilfield, Shandong
  • , H. XuAffiliated withImaging Center, Shengli Hospital of Shengli Oilfield, Shandong
  • , F. LiuAffiliated withDepartment of Biological Sciences, National University of Singapore
  • , Lei FengAffiliated withDepartment of Psychological Medicine, National University of SingaporeDepartment of Psychological Medicine, National University of Singapore Email author 

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Abstract

This review summarizes the literature on the association between tea consumption and cognitive health in late life. Population-based studies reviewed in this article suggest that tea drinking has beneficial effects on cognitive function of elderly persons. However, a cause-effect relationship between tea consumption and cognitive decline and dementia could not be drawn given inconsistent findings from only two longitudinal cohort studies. The neuroprotective effects of tea consumption could be due to catechins, L-theanine and other compounds in tea leaves. More longitudinal observational study is needed. Information on life-time tea consumption and blood concentrations of catechins and L-theanine could be collected in future studies.

Key words

Tea catechins elderly cognitive decline dementia prevention