Category Archives: L-theanine

L-Theanine and the Brain

L-theanine (N-ethyl-L-glutamine) is a non-proteinaceous amino acid that is found in high amounts almost exclusively in tea (Camellia sinensis). In fact, L-theanine accounts for around 50 % of the amino acids in tea leaves. L-theanine is structurally similar to glutamic … Continue reading

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Why Does Tea Create Calmness?

Tea is known to induce a state of calmness and this is verified through both anecdotal and empirical evidence. The reason for this may be sereralfold, but one of the main mechanisms is suggested to be the fact that tea … Continue reading

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L-theanine: Psychotropic Effects?

L-Theanine (N-ethyl-L-glutamine) is a non-essential non-proteinaceous amino acid that is found in its free form in tea. Evidence suggests that L-theanine from tea or in supplements is able to cause relaxation by induction of alpha wave states in the brain. … Continue reading

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L-Theanine to Reduce Stress

L-theanine is a non-essential amino acid that is found in tea leaves in high concentrations. L-theanine passes across the blood brain barrier easily and in the brain it can have physiological effects. In particular, L-theanine is known to block the … Continue reading

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L-Theanine: Health Effects

Green tea has a number of health effects and these effects relate to the phytochemicals within the Camellia sinensis (tea) plant. One important constituent of green tea is the amino acid L-theanine. In animals, L-theanine is absorbed across the gut … Continue reading

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Glycine and L-Theanine for Rest and Focus (The NMDA Receptor)

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L-Theanine, Melissa officianalis and Magnolia officinalis for mood

Combination therapy is the use of multiple compounds to treat a particular condition. Combination therapy using plant compounds is particularly useful in the treatment of mood disorders because plant compounds tend to have different but overlapping effects on various aspects … Continue reading

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L-Theanine, Melissa officinalis, Magnolia officinalis

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Tea As An Anti-Stress Drink

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Why Does the L-Theanine Content of Tea Vary?

Tea is a unique source of an amino acid called L-theanine. L-theanine is of interest to nutritionists because evidence suggests that L-theanine can alter brain chemistry which result in changes to brain wave pattern. These changes cause the excitability of … Continue reading

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