Oolong tea also known as Wulong helps with digestion, lowers cholesterol, and has weight loss benefits. Oolong tea has a nutty or floral aftertaste and soothing aroma. Oolong is a semi-fermented tea that's made from large leaves to produce a full-bodied taste. After being picked, the tea leaves are withered to remove moisture. The oolong leaves are then left to dry in the shade before the semi-fermentation process begins.