In nature, most concentrated in green tea. Has numerous benefits. Passes through the blood-brain barrier inducing a feeling of restful alertness.
Theanine: Natural Support for Sleep, Mood, and Weight - Life Extension http://www.lifeextension.com/magazine/2006/1/report_theanine/page-01 http://www.lifeextension.com/magazine/2006/1/report_theanine/page-01 Theanine: Natural Support for Sleep, Mood, and Weight - ... http://www.lifeextension.com/magazine/2006/1/report_theanine/page-01 Back when Europe was stone huts and the Mayans were playing soccer, the Chinese were drinking tea. Tea goes back at least 5,000 years as medicine and mo... View on www.lifeextension.com http://www.lifeextension.com/magazine/2006/1/report_theanine/page-01 Preview by Yahoo
