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Studies on L-Theanine
A study published in the Journal of Food Science & Technology in 1999 confirms theanine has a significant effect on the release of neurotransmitters such as dopamine and serotonin. †
Neurotransmitters are the chemical language of the brain. The study suggested L–T (Theanine) is a safe and effective dietary supplement for natural relaxation—stress, anxiety, and tension pain.
Clinical studies show effectively that L–T (Theanine) has the following characteristics:
- L-T reduces stress/anxiety by inducing relaxation.†
- L-T increases focus, concentration, and learning.†
- L–T lowers blood pressure.
- L–T lowers PMS symptoms.†
- L–T reduces tension muscle pain.†
- L–T modulates mood.†
- L–T reduces the effects of caffeine.†
Theanine Compared to St. John’s Wort and Kava Kava
Both Kava Kava and St. John’s Wort have many negative side effects associated with them. L–T has no side effects.
Kava Kava
- Can lead to drowsiness and sedation
- Strong bitter taste
- Adversely effects judgment and reflexes
- Can lead to yellowing of hair, skin, and nails
- Interacts with alcohol and psychiatric drugs.
St. John’s Wort
- Interacts negatively with drugs for heart disease, depression, seizures, and certain cancers.†
- Takes several weeks of continuous use to achieve desired effect.†
- St. John’s Wort can cause photosensitivity.†
In the Volume 10 1999 issue of Food Science and Technology researchers researchers reported the relaxation effects of L-Theanine (Suntheanine) on humans. Oral intake of L-Theanine in humans caused a feeling of relaxation, and brain waves (EEG) changed to alpha waves in the occipital and parietal parts of the brain. Alpha waves are usually on achieved with deep meditation. The brain waves changed within 40 minutes of ingestion. Dosages ranged between 50 to 200 mg.†
To induce relaxation the suggested does of L–T is 1 capsule, and effects are felt within 30 minutes. bsorption dissolve 1 capsule in water; effects are felt within 20 minutes. One capsule of L–T may be taken, four times daily to maintain continuous mood elevation and relaxation.†
If you weigh over 150 pounds, 2 capsules of L–T (L-Theanine) can be taken at once. B6 or P5’P must be taken daily either in another formula or alone to metabolize L–T or any amino acid. Children 12 years of age and older can use L-T as needed.†
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