Uses For l-Theanine Relaxation Support: Preliminary clinical evidence shows an increase in alpha brain wave activity after theanine administration. Alpha waves are an indication of an alert/relaxed mental state.*
Premenstrual Support: In a clinical test, theanine provided both mental and physical support for women, including moderation of occasional irritability and stress.*
Nervous System Support: l-Theanine moderates the effects of caffeine on the central nervous system. It has also been shown to support healthy neurotransmitter function.*
What Is The Source? l-Theanine is the most abundant free-form amino acid found in tea leaves. l-Theanine in supplement form is synthetically derived but is chemically identical to naturally occurring theanine. Hypo-allergenic plant fiber is derived from pine cellulose.
Are There Any Potential Side Effects Or Precautions? If pregnant or lactating, consult your physician before taking this product. Higher doses in some people may cause drowsiness; however lower doses are not associated with this effect.
Are There Any Potential Drug Interactions? At this time, there are no known adverse reactions when taken in conjunction with medications.
*This is a statement of nutritional support. This statement has not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. For educational purposes only. Consult your physician for any health problems.
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Yokogoshi H, Kobayashi M, Mochizuki M, Terashima T. Effect of theanine, r-glutamylethylamide, on brain monoamines and striatal dopamine release in conscious rats. Neurochem Res1998 May;23(5):667-73.
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Sugiyama T, Sadzuka Y. Combination of theanine with doxorubicin inhibits hepatic metastasis of M5076 ovarian sarcoma. Clin Cancer Res1999 Feb;5(2):413-6.
Sugiyama T, Sadzuka Y, Tanaka K, Sonobe T. Inhibition of glutamate transporter by theanine enhances the therapeutic efficacy of doxorubicin. Toxicol Lett2001 Apr 30;121(2):89-96.
Healthnotes Clinical Essentials. Copyright 2003. Healthnotes, Inc.