L-Theanine Side Effects

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Side effects of L-Theanine

L-Theanine is a water soluble amino acid and was found as a constituent of green tea in 1949. It is extracted from gyokuro leaves which have a high theanine content. It is found in black, green and white tea as well. Theanine is primarily known for its stress relieving properties and no side effects have been reported till now. It is also used as a treatment for cancer, stroke prevention and weight reduction.

L-Theanine is present in its purified form as an oral dietary supplement. It is also produced by the body and performs the task of nourishing the brain. The effects of L-Theanine on an individual can be seen on an electroencephalograph (EEG), wherein the increase in the alpha frequency band shows the increase in alertness of the mind without any signs of drowsiness. On one hand L-Theanine alerts the mind during the day; its consumption at night induces a deeper, more relaxing sleep. A single dose of Theanine of 200 – 250 mg can produce anti anxiety effects immediately.

L-Theanine is known for its relaxing properties and it does not cause any drowsiness, which other relaxants generally cause. L -Theanine can be used as a substitute for caffeine as it alerts the mind without causing effects such as sleep deprivation and increase in blood pressure. The use of L-Theanine produces more Alpha Waves in the brain, thus creating an alert state of the mind. However, individuals who take sedatives or hypnotics, their effects might be increased. Depressants like alcohol might also enhance the effects of L-Theanine.

In some cases it has been noted that the individual feels nauseous and experiences dizziness if the intake of L-Theanine is in large amounts. However, no scientific proof is available for such symptoms. It acts as a mind relaxant and hence when consumed releases a substance known as Dopamine which produces a sense of well being in the human body. It is said that the increase in levels of Dopamine might make an individual nauseous. However no scientific proof is available for this phenomenon as well.

Although it is advised by some medical professionals that people who take sedatives should not consume high quantities of L-Theanine. Since it is a mind relaxant, its use along with the sedatives might produce a longer state of sedation. However, there have been no records of any side effects caused by L-Theanine, as people have been known to consume green tea several times a day. The consumption of L-Theanine actually relieves stress and helps in weight reduction. It also makes the skin glow and has anti aging properties. However,s every individual is different and Theanine might affect each individual differently. People taking medications, must consult with their doctors so as to not cause any clashes, before using Theanine. Also the effects on children and pregnant women are still unknown and hence, they should practice caution. Otherwise L-Theanine is a great way to ensure one’s well being and its consumption causes virtually no side effects.

L-Theanine Side Effects (Review – From Personal Experience)

In my personal experience the only side effect when taking L-Theanine (if taken by itself) is extreme drowsiness. When taken with caffeine (as intended for its nootropic benefits) or when taken for sleep (to improve REM sleep and feel more refreshed from a sleep cycle than usual), this side effect acts as the intended benefit of L-Theanine and greater sleep, or a greater experience with a stimulant, will result. Stack it with a psychostimulant to help you take the edge off and feel more relaxed too, you’ll be amazed at how strong and effective it is.