Overview
- Researchers analyzed health data from 485,934 adults in China with an average follow-up of just over nine years and recorded 14,863 vascular events.
- People who drank tea at least once a week had an estimated 11% lower risk of cardiovascular and vascular disease compared with non‑drinkers.
- The lowest estimated risk occurred at about six to eight cups daily, with benefits declining above that level.
- Black tea and medium‑strength brews showed more consistent links with lower risk, while participants who reported drinking very hot tea had a higher relative risk in the study.
- The study is observational so it cannot prove that tea causes the risk differences, and the strongest protection appeared when regular tea drinking co‑occurred with not smoking and high physical activity, which limits how the results should shape personal advice or public guidance.