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Evidence-Based Supplement Research

Evidence-Based Supplement Research

Tea and Reduced Dementia Risk

Doses used in studies

cups/day: 1–2 (median 1.5, IQR 1–2) — 1 study

Time to effect

Median: 523.2 months · IQR 523.2 months–523.2 months · Range 523.2 months–523.2 months — Reported in 1 of 1 study

1 of 1 paper

Coffee and Tea Intake, Dementia Risk, and Cognitive Function.
- 2026-03-17
- Observational · n = 821
- JAMA 335(11)
- - Yu Zhang
  - Yuxi Liu
  - Yanping Li
  - Yuhan Li
  - Xiao Gu
  - Jae H Kang
  - A Heather Eliassen
  - Molin Wang
  - Eric B Rimm
  - Walter C Willett
  - Frank B Hu
  - Meir J Stampfer
  - Dong D Wang
- PubMed: 41661604
- DOI: 10.1001/jama.2025.27259
4 Insights on
- Reduced Dementia Risk
- High evidence
- Rigorous Journal
Higher intake of tea showed similar associations with these cognitive outcomes
Effect
Beneficial
Effect size
Moderate
Significant
Yes
Dose
approximately 1 to 2 cups per day