Some of the most common ones include chlorogenic acids (CGAs), trigonelline, tryptophan alkaloids, and diterpenes, which are ...

One study suggested the L-theanine content of green tea was 6.56 milligrams per gram (mg/g) of tea leaves. Conversely, white ...

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

Tea contains L-theanine, a chemical that metabolizes caffeine ... One cup of tea, by contrast, only contains 30 to 50 mg of caffeine. "Generally speaking, coffee has two to three times more ...