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Prime Time for Theanine

Theanine is sold in the US as a dietary supplement and is FDA confirmed as “GRAS” or Generally Recognized as Safe. That’s good because theanine is a natural component of the Camellia sinensis shrub (that’s tea). Able to stimulate the brain, theanine has been shown to reduce mental and physical stress and improve cognition and mood in much the same way caffeine does. It’s not uncommon for beverage manufacturers to sell drinks containing theanine and market them as having qualities beneficial to focus and concentration.
On May 17th of 2009, it was reported in the Chicago Tribune that although most people will opt for an energy drink for a quick pick-me-up, a better choice would be to go with a beverage containing the amino acid L-theanine to enhance concentration and mental stamina. L-theanine, the report says, has the ability to put you in an alert state without keeping you up at night. “Several studies suggest that the substance stimulates the brains alpha waves, which are associated with alertness,” it says.

Furthermore, in 2003 the Brigham and Women’s Hospital announced in a news release the results of a study that indicated “drinking certain types of tea containing high concentrations of an amino acid called L-theanine may help strengthen the bodys immune system response when fighting off infection.” It goes on to note, “A control group drank coffee instead. The study showed that those people who drank five to six small cups (about 20 ounces) of black tea per day were better equipped to prevent infection. At two weeks, the halfway point of the study, the gamma delta T cells from the tea drinkers, but not the coffee drinkers, showed an enhanced ability to produce disease-fighting chemicals after exposure to bacteria. Specifically, when blood samples were analyzed, the researchers found that the tea drinkers made up to five-fold higher amounts of anti-bacterial proteins – an indicator of a stronger immune response.”

The above-mentioned articles are great. I highly recommend clicking on the links for full details.

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About MatchaGT by ShelleRae

Welcome! I am ShelleRae and I am very excited you are here. I joined the Smoothie Essentials team about 5 years ago now. Always health conscious and into prevention versus medication it seemed natural when the opportunity came up to take on the creation of this blog and the Smoothie Essentials blog as well. As mother to three and surrogate to many more I've practiced much of what I write on sometimes with great success and other times with a bit less. My friends and family are my test kitchen and my facts are most often from WebMD - they seem to have a fairly accurate and conservative approach. MatchaGT – the super premium Matcha Green Tea Introducing Matcha GT, the super premium Matcha Green Tea. Matcha GT is nature’s natural source of energy and antioxidants. Used for centuries in Japanese tea ceremonies, Matcha provides a powerful pick-me-up plus antioxidants and other health benefits to keep the body, mind and spirit in perfect balance. While many forms of green tea are strained or brewed, Matcha GT uses the whole tea leaf providing the full benefits and bold taste of whole green tea powder. My inspiration comes from others who also are striving to live a better life through lifestyle changes. More information is available at or by emailing Benefits: Natural Caffeine – longer lasting energy Antioxidants – to fight cancer causing free radicals Chlorophyll – powerful blood cleanse Coffee concepts and juice bars across North America including Starbucks, Jamba Juice, Coffee Bean & Tea Leaf, Smoothie King, and Booster Juice have recently started selling Matcha Green Tea smoothies, frappes, and lattes, promoting the great taste and health benefits of green tea.

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