Unlike black tea, green tea is not fermented and therefore contains natural antioxidants, like catechins, which have an ...

Comparing the caffeine content of black tea and coffee isn't as simple as you might expect. Here's what you should know in order to choose the right beverage.

Tea and coffee are both good sources of caffeine and antioxidants. Coffee contains twice as much caffeine as tea, and can give you a more immediate energy boost. Tea contains L-theanine ...

For example, in 1820, the German chemist Runge, discovered the caffein of coffee, and a few years after, Oudry, the French chemist, discovered the thein of tea—both crystalline bitter substances ...