Patients Feeling Stressed Out and Anxious? L-Theanine May Help!
In today’s fast-paced world, many patients are feeling stressed out and anxious. Some of these patients may benefit from L-theanine, an amino acid found in green tea. L-theanine is a dietary supplement used to help support many key body functions including immunity, brain health and more. Perhaps the most notable application is its support of people who are experiencing stress and occasional anxiety.
L-theanine is absorbed in the small intestine via a sodium-coupled active transport process that allows it to cross the blood-brain barrier fairly quickly. Because of this, in most cases it can have an effect in about 30 minutes after ingestion. Research involving human electroencephalograph (EEG) results demonstrate that L-theanine can significantly increase alpha wave activity in the brain, which explains its calming effects. L-theanine binds to glutamate receptors that then block the binding of L-glutamic acid to glutamate receptors in cortical neurons contributing to the calming effect. Some research also shows that L-theanine may up-regulate gamma-aminobutyric acid (GABA) and modulate serotonin and dopamine concentrations in the brain.
In addition to increasing alpha waves in the brain, L-theanine also simultaneously decreases beta brain waves. Beta waves are associated with an excited state of mind. By influencing both alpha and beta brain waves, L-theanine has the ability to help create a state of relaxation, without drowsiness.
In addition to promoting a sense of calm, L-theanine has been shown to improve focus, as well as enhance attention and concentration. There have also been a few studies indicating that L-theanine can help support sound sleep.
Some of the studies in the scientific literature used a special proprietary ingredient known as Suntheanine. Suntheanine is a patented and isomerically pure form of L-theanine that is produced via a proprietary enzymatic process. Suntheanine has GRAS (Generally Recognized as Safe) status.
The typical dosage of L-theanine is between 50 and 200 mg; however, at least 100 mg daily is recommended for most applications.
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