Tea is an infusion of the leaves of the Camellia sinensis plant and is the most widely consumed beverage in the world, aside from water (1). Herbal teas are infusions of herbs or plants other than Camellia sinensis and will not be discussed in this article. Although tea contains a number of bioactive chemicals, including caffeine and fluoride, scientists are particularly interested in the potential health benefits of a class of compounds in tea known as flavonoids. In many cultures, tea is an important source of dietary flavonoids.