---
title: Coffee & Tea Linked to Lower Stroke/Dementia Risk
description: In recently published data from the ongoing UK Biobank study, a population based cohort, greater consumption of coffee and tea were both linked to a lower risk for stroke, dementia, and post-stroke dementia. Over 365,000 participants aged 50-74 had data available regarding their beverage consumption, and over a median follow-up of 11.35 years, 2.8% had a stroke and 1.4% developed dementia. After multivariate adjustment, a non-linear association was found between intake of these two beverages and risk; separately and combined, intake of coffee and tea was associated with a lower risk of stroke and dementia.
---

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# [Coffee & Tea Linked to Lower Stroke/Dementia Risk](https://info.bioticsresearch.com/researchforum/coffee-tea-linked-to-lower-stroke/dementia-risk)

 Written by [The Biotics Research Team](https://info.bioticsresearch.com/researchforum/author/the-biotics-research-team) | Nov 30, 2021 3:57:21 PM

In [recently published data](https://pubmed.ncbi.nlm.nih.gov/34784347/) from the ongoing UK Biobank study, a population based cohort, greater consumption of coffee and tea were both linked to a lower risk for stroke, dementia, and post-stroke dementia. Over 365,000 participants aged 50-74 had data available regarding their beverage consumption, and over a median follow-up of 11.35 years, 2.8% had a stroke and 1.4% developed dementia. After multivariate adjustment, a non-linear association was found between intake of these two beverages and risk; separately and combined, intake of coffee and tea was associated with a lower risk of stroke and dementia. Participants that consumed a combination of 2-3 cups of coffee with 2-3 cups of tea per day appeared to have the greatest risk reduction, approximately 30% lower for both stroke and dementia. The combination of coffee and tea was also associated with a 48% lower risk for post-stroke dementia, at a consumption level of 3-6 cups per day.

This cohort study did not address mechanisms of action, but previous studies [generally have supported its findings](https://pubmed.ncbi.nlm.nih.gov/32923185/), particularly for [ischemic stroke](https://pubmed.ncbi.nlm.nih.gov/34600504/), with speculation that many of the polyphenols, phenolics, catechins, flavonoids, etc. found in coffee and tea have antioxidant and anti-inflammatory effects, help with [insulin resistance](https://pubmed.ncbi.nlm.nih.gov/27060021/) and [endothelial function](https://pubmed.ncbi.nlm.nih.gov/29401716/), and have an inhibitory effect on [beta-amyloid aggregation](https://pubmed.ncbi.nlm.nih.gov/29789466/). That combined consumption was associated with the greatest risk reduction suggests that there may be complementary polyphenols in these two beverages.

[View full post](https://info.bioticsresearch.com/researchforum/coffee-tea-linked-to-lower-stroke/dementia-risk)

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