L-theanine is a chemical regularly found in tea and is responsible for some of the well known effects tea has on the mind and body, as well as having an influence on the flavor itself.
The concentration of L-theanine found in any tea is high for this pretty uncommon chemical. Two of the teas with the highest known concentration, gyokuro and Anji bai cha, both contain around 2% L-theanine by dry weight. All other teas contain around 1% by dry weight.
The effects of L-theanine
Even though not completely understood and subject to ongoing research, L-theanine has a number of effects on the mind and body.
L-theanine reacts with caffeine to promote increased alertness with less amounts of caffeine required. This effect has been suggested for a long time before it was finally confirmed by controlled studies.
This is why tea is so popular for boosting concentration, even though it contains so much less caffeine than coffee. On the other hand L-theanine also plays a role in relaxation. This effect is what has led people to claim that L-theanine promotes a relaxed alertness.
L-theanine also has the ability to promote healthy sleep. In spite of the caffeine content, this is why tea is so well known to give you the “pick me up” when you need it, relax your body and mind at the end of the day and promote sweet dreams at bedtime.
At ESP Tea Emporium, our goal isn’t to only sell tea, we want to inform and teach you about the amazing world of different teas, tea culture and the provided health benefits. Please check back for more interesting, helpful and informative articles about all the benefits to drinking tea.