Health benefits of oolong tea
Last reviewed Wed 6 September 2017
By Megan Metropulos, MS, RDN and Megan Ware, RDN, LD
There is a record of tea being used as a beverage in China since 2,000 B.C.E. Besides water, it is consumed more than any other drink around the world. The four main types of tea are black, green, white, and oolong.
All four varieties come from the Camellia sinensis plant. Herbal teas are not considered true tea because they do not come from the Camellia sinensis plant.
https://www.medicalnewstoday.com/articles/319276.php
