l-Theanine is a natural component of green tea that is responsible for its characteristic taste. l-Theanine is also believed to be the component in green tea responsible for its relaxation effects.
For more information on L-Theanine, please consult with our nutritionist (see Contact Us) or your health practitioner.
Serving Size:1 capsule Servings Per Container:60 Amount Per Serving:
Other Ingredients:hypo-allergenic plant fiber, vegetable capsule
Recommended Use: As a dietary supplement, take 1-6 capsules daily, in divided doses, between meals.
Warning:If pregnant, consult your physician before taking this or any other product.
Store Sealed In A Cool Dry Area Keep out of reach of children. Tamper resistant: Use only if safety seal is intact.
This encapsulated product contains no hidden coatings, excipients, binders, fillers, shellacs, artificial colors or fragrance. Contains no dairy, wheat, yeast, gluten, corn, sugar, starch, soy, preservatives or hydrogenated oils.
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.
Kobayashi K, Nagato Y, Aoi N, Juneja LR, Kim M, Yamamoto T, Sugimoto S. Effects of L-theanine on the Release of alpha-Brain Waves in Human Volunteers. Nippon Noegikagaku Kaishi 1998 1998;72(2):153-7.
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.
Yokogoshi H, Mochizuki M, Saitoh K. Theanine-induced reduction of brain serotonin concentration in rats. Biosci Biotechnol Biochem1998 Apr;62(4):816-7.
Yokogoshi H. et al. Reduction effect of theanine on blood pressure and brain 5-hydroxyindoles in spontaneously hypertensive rats. Biosci Biotechnol Biochem1995 Apr;59(4):615-8.
Kakuda T, Nozawa A, Unno T, Okamura N, Okai O. Inhibiting effects of theanine on caffeine stimulation evaluated by EEG in the rat. Biosci Biotechnol Biochem2000 Feb;64(2):287-93.
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.