According to the Tea Association of the USA, tea is the most widely consumed beverage in the world next to water and on any given day, over 160 million Americans drink tea. Whether served hot or iced, there are a variety of teas to choose from including black, green, oolong and white. Though all tea varieties come from the same plant, Camellia sinensis, the differences in taste and color are a result of varying degrees of processing.
In addition to its delicious taste and the ability to cool you off on a hot summer day or warm you up on a chilly winter day, tea may offer some health benefits. Tea is rich in flavonoids and other polyphenols, which work as antioxidants and may help to boost our immune function and protect our body cells from damage that can lead to health problems such as heart disease, cancer, diabetes and other diseases. Some studies have also shown that nutrients found in tea may promote oral health and weight management.
When it comes to the caffeine content in tea, although levels vary depending on the variety and brewing method, tea typically contains less than half the caffeine found in coffee, with around 20-60 mg per 8 ounces.
Source: www.eatright.org and www.teausa.com.