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Posted 3/16/07CLICK TO PRINT

NAME: Theanine

Green Tea plants
DESCRIPTION: Amino acid

L-theanine is the predominant amino acid in green tea and constitutes between 1% and 2% of the dry weight of green tea leaves. L-theanine is considered the main component responsible for the taste of the tea, which in Japanese is called umami.

L-theanine is a derivitave of glutamine.

FUNCTION: Used for promoting relaxation and modulating (improving) mood. Theanine may also enhance learning ability. These effects are perhaps achieved by increasing the level of neurotransmitters such as gamma-aminobutyric acid (GABA), serotonin, and dopamine.

Theanine may have usefulness in cancer treatment, specifically, aiding the body's response to chemotherapy - in both the effectiveness of the drug treatments and ameliorating their side effects.

SOURCES: Green tea plant (Camellia sinensis)
DOSAGE: Will vary by product and formula concentration.
DATA:

Scientists at Oxford University found that L-theanine plays an important role in tea's stimulatory effect on the brain's alpha waves.

Physician Desk Reference's entry on L- theanine features some detailed research results, some of which are outlined here.

CAUTIONS: Do not take if pregnant or lactating.

Do not use with antidepressants (e.g., MAO or SSRI inhibitors) or St. John's wort.

Do not operate heavy machinery or take with alcohol.

FOR MORE
INFORMATION:
"Drinking Tea May Boost Immune System - Study provides new theory on health benefits of tea - a cup a day may keep illness away" (2003 Brigham and Women's Hospital study results)
RELATED
PRODUCTS:
Theanine Serene with Relora® Calming Complex with GABA (Source Naturals) Each bottle, 30 tablets.
PRODUCT NOTES: Each two tablets (manufacturer's suggested dose) of Theanine Serene contain:
GABA (gamma-amino-butyric acid) - 500 mg
Taurine - 450 mg
L-Theanine - 200 mg
Relora® - 150 mg (A proprietary blend of patented extracts from Magnolia officinalis and Phellodendron amurense)
Holy Basil Leaf Extract 5:1 - 100 mg
Magnesium (as magnesium chelate) - 300 mg
Other ingredients / more information...

NYBC's Members Store states: "A very relaxing way to have a good night's sleep and to relax your mind. Our reviewer has tried it and likes it!"

DISCLAIMER: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.