teaA meta-analysis published in Stroke (2009; 40(5):1786–1792) examined the relationship between tea consumption and stroke risk. The analysis included nine observational studies involving 195,965 participants, among whom 4,378 strokes occurred. The researchers found that people who consumed three or more cups of tea per day had a 21% lower risk of stroke compared with those who drank one cup or less per day. Tea can be a source of antioxidants.