How does the tea L-theanine buffer stress and anxiety

Tea (Camellia sinensis) is widely considered to promote feelings of calming and soothing. This effect attributed L-theanine (L-?-glutamylethylamide) in tea, a non-protein amino acid mainly derived from tea leaves. As naturally occurring structural analogue glutamate, competes for the receptors with glutamate able pass blood-brain barrier exert its relaxation effect. review focuses on L-theanine, including animal models latest human trials as well potential molecular mechanisms regarding neuron stem cells. The biological efficacy dietary food matrix has been further discussed this relation physiological changes gastrointestinal tract bindings other components.