The Claim

Higher tea consumption is associated with a slightly reduced risk of dementia, with each additional cup per day linked to a 4% lower risk (relative risk: 0.96, 95% CI: 0.94–0.99), based on observational data from 38 cohort studies involving over 750,000 adults.

Source: Tea, coffee, and caffeine intake and risk of dementia and Alzheimer's disease: a systematic review and meta-analysis of cohort studies.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
52score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

People who drink more tea tend to have a slightly lower chance of getting dementia — every extra cup a day might lower the risk by about 4%.

See the scientific wording

Higher tea consumption is associated with a slightly reduced risk of dementia, with each additional cup per day linked to a 4% lower risk (relative risk: 0.96, 95% CI: 0.94–0.99), based on observational data from 38 cohort studies involving over 750,000 adults.

What the research says

1 study

  1. Study: Tea, coffee, and caffeine intake and risk of dementia and Alzheimer's disease: a systematic review and meta-analysis of cohort studies.

    This study found that people who drink more tea have a slightly lower chance of getting dementia — exactly as the claim says: each extra cup a day lowers risk by about 4%.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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