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Theanine

What is theanine?

L-theanine is an amino acid found in green tea.

It is extremely rare.

To date it has been identified in tea (Camellia sinensis) and in a mushroom (Xerocomus badius, the Bay Bolete).

There are higher amounts in gourmet green tea (look for younger leaves and buds, mountain grown green tea), with lower amounts in oolong and black tea.

The amount will also vary with climate.

Human research has shown improvements in mental performance, with simultaneous improved focus and a general calming effect.

Other preliminary studies have shown potential enhancement of the immune system, including multiple cancer studies.

Here are some of them:

Memory

Reducing beta amyloid damage for Alzheimer's Disease

Well-being

Dopamine research including 5 cups of green tea daily for increased well-being and improved memory

Increased serotonin in the brain with potential anti-depressant activity without side effects

Cancer

Preliminary cancer studies show reduced liver cancer, breast cancer, colon cancer, ovarian cancer, and prostate cancer

Non-small cell lung cancer suppression of carcinoma growth and migration

Improving potency of chemotherapy while diminishing cellular damage side effects

Immune System

Flu vaccine effectiveness for elderly patients

Where To Buy Tea: Resources and Marketplace

This page was last updated by Sharon Jones on August 25, 2012.

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Information presented is educational and is not medical advice, diagnosis, or treatment. If you have a health condition, please consult with licensed health care practitioners for individualized care.
Copyright 2006-2013 Sharon Jones, www.green-tea-health-news.com

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