NPJ Sci Food

Green tea linked to lower dementia risk in older adults

January 21, 2025

Higher green tea consumption may be beneficial in reducing cerebral white matter lesions, potentially offering a protective effect against dementia.

Study details: The relationship between green tea and coffee consumption and brain health was examined among 8,766 community-dwelling older adults without dementia, recruited from the Japan Prospective Studies Collaboration for Aging and Dementia (2016-2018). Participants' consumption was assessed using a Food Frequency Questionnaire, and brain MRI scans were used to evaluate cerebral white matter lesions, hippocampal volume, and total brain volume.

Results: Multivariable-adjusted analysis revealed a significant association between higher green tea consumption and fewer cerebral white matter lesions. However, significant correlations weren’t found between green tea consumption and hippocampal or total brain volume. Similarly, coffee consumption showed no significant differences in cerebral white matter lesions, hippocampal volume, or total brain volume.

Source:

Shibata S, et al; Japan Prospective Studies Collaboration for Aging and Dementia (JPSC-AD) study group. (2025, January 7). NPJ Sci Food. Green tea consumption and cerebral white matter lesions in community-dwelling older adults without dementia. https://pubmed.ncbi.nlm.nih.gov/39774601/