L-Theanine is derived from the tea plant and from a type of mushroom
L-Theanine is a dietary supplement that is FDA approved. It is also sometimes called Suntheanine. Like most dietary supplements, L-Theanine has a few contraindications that you need to discuss with a physician before taking it. This natural derivative is purported to have positive health benefits, from relieving anxiety to preventing more major health problems such as tumors.
Uses
The tea plant is native to Eastern Asia.
L-Theanine is a chemical derived from the tea plant and from a type of mushroom. It is a popular product in the alternative health world; it's prized for its ability to relieve stress without causing drowsiness. L-Theanine has also been shown to improve mental concentration when combined with caffeine, and preliminary research show that this natural drug has properties that may prevent obesity and tumors.
Research
Research is being conducted on the uses for L-Theanine.
Although research has not been conducted on every possible contraindication of L-Theanine, studies are being made on its uses. Usually, with drugs and herbs, the benefits are studied first, and then the contraindications. Now that more doctors know of L-Theanine's uses and possible uses, they can judge, on a case-by-case basis, if would be advisable for their patients to take it, and if it may interact negatively with other drugs that have similar effects.
Sensitivity or Pregnancy
You should probably not take L-Theanine if you are pregnant.
Since L-Theanine is sold as a dietary supplement, doctors and pharmacists don't have cut-and-dry contraindications on it as they do on prescription drugs and over-the-counter medicines. Yet, if you've experienced hypersensitivity to green tea or are pregnant or lactating, your doctor will probably advise you not to take L-Theanine. Medical professionals can also access online medical libraries, such as Merck Manuals, to find out about dietary supplements/herbs and their possible contraindications. Always check with your doctor or pharmacist if you're thinking of starting a new supplement.
Drug Contraindications
Tell your doctor if you are considering taking L-Theanine.
The more serious contraindications of L-Theanine lie in its potential to interact negatively with other drugs a person may be taking. You should always consult your doctor before starting a new dietary supplement such as this. This is especially important for those on prescriptions such as sedatives, lipid-lowering drugs, or chemotherapy drugs. Although L-Theanine has been found to be a possible benefactor in lowering lipids and in chemotherapy, it is for this very reason that it may be inadvisable, since it can have unknown effects on treatments which are already in place.
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