Green tea extract has been found to lead to improvements in blood pressure, blood sugar levels, cholesterol and markers of inflammation in obese people with high blood pressure. The three-month supplementation had a significant effect on reducing cardiovascular risk factors. (Green tea extract reduces blood pressure, inflammatory biomarkers, and oxidative stress and improves parameters associated with insulin resistance in obese, hypertensive patients. Nutrition Research. doi:10.1016/j.nutres.2012.05.007).