L-Theanine is an amino acid derivative commonly found in green tea, particularly infusions of Camellia sinensis. L-Theanine supplements are generally used to promote relaxation without causing drowsiness, unlike other relaxation type products.
L-Theanine may offer many other benefits as it has been shown to reduce mental and physical stress, improve mood, and at realistic dietary levels, may have a significant effect on the general state of mental alertness or arousal.
Consequently, several beverage manufacturers are selling drinks containing theanine, marketing them as drinks to help people focus and concentrate, while other manufacturers continue to claim the more popular relaxing and tranquillizing properties.
The list of benefits goes on and on. L-Theanine may help the body’s immune response to infection by boosting the disease-fighting capacity of gamma delta T cells, increasing the body’s immunity against colds and flu. Some supplements used to enhance the immune system contain high levels of L-Theanine.
One of the most popular ingredients in diet products, green tea extract is well known for its weight loss properties. L-Theanine is naturally found in green tea and studies have shown that L-Theanine may help to lower body weight, body fats and triglycerides.
Additionally, L-Theanine supports healthy cardiovascular function through this relaxing effect as well as its antioxidant properties. Some other reports suggest that L-Theanine can help diminishing symptoms of PMS, improving learning performance, lowering blood pressure, and increasing formation of the inhibitory neurotransmitter GABA.
L-Theanine is sold as a dietary supplement and is FDA approved and confirmed as Generally Recognized As Safe (GRAS).
|Source Naturals – L-Theanine 200 mg. – 60 Tablet(s)|
|Country Life – L-Theanine Suntheanine Amino Acid – 30 Vegetarian Capsules|
|Solgar – L-Theanine 150 mg. – 60 Vegetarian Capsules|