A number of plant compounds have been found in tea, including amino-acids, minerals, caffeine, and the largest group of all - polyphenols. In the group of polyphenols are flavanols (catechins) responsible for the flavors and aromas of tea, and “antioxidants” which are known for their role in health. Green tea has the highest percentage of antioxidants, however, all teas have some of these helpful chemicals. For a short summary article on the health benefits of tea, see our Tea & Health page.