Health Benefits of L Theanine | Detailed Explanation
L theanine is one of the amino acids present in tea. Health benefits of l theanine include enhancing the digestion and absorption capacity of the individual's gastrointestinal system and accelerating the body's metabolism. Besides, l theanine can also effectively regulate brain nerves and improve learning and memory abilities. So how do we obtain L theanine?
Where can we get l theanine?
There are many health benefits of l theanine. Drinking tea is the simplest way to obtain L theanine. When drinking tea for a long time, it can facilitate the absorption of l theanine, which can also achieve liver nourishing and antioxidant effects.
The main sources of l theanine are various types of tea leaves, including red tea, green tea, yellow tea, white tea, and black tea. Among these five types of tea, green tea contains the most l theanine.
So for people who do not like drinking tea but want to obtain l theanine, how do they obtain l theanine? At present, there are also tablets made of l theanine extracts on the market, and you can supplement l theanine by taking medication.
Health benefits of l theanine
L theanine is an amino acid and it has the effects of promoting brain cell development, improving brain function, antibacterial, anti-inflammatory, etc. It can be used in clinical practice to treat diseases such as neurasthenia, cerebral arteriosclerosis, and migraine. Below are the health benefits of l theanine.
1. Accelerating brain cell development: It can accelerate brain cell development and recovery of brain nerve function. Doctors use it to treat mild to moderate intellectual development delay and brain dis-function in children;
2. Improving brain function: It can promote the recovery of central nervous system function, including enhancing motor function, sensory function, motor ability, attention, etc. Therefore, it can be used to treat sequelae of stroke and senile dementia;
3. Anti-bacterial: It has a strong anti-bacterial effect, so it can be used as an auxiliary treatment for tuberculosis infection;
4. Anti-inflammation: It has great anti-inflammatory effects and can be used to treat chronic ulcers, rheumatoid arthritis, and other diseases;
Daily optimal intake of l theanine
L theanine is an important nutritional component in tea, but there is no definite number for its optimal intake. Because everyone's physical condition and metabolic rate are different. In addition, the content of theanine in tea may vary depending on the variety and picking, so it is not possible to provide a specific number.
The daily intake of L-theanine by normal people is 20-30mg, which is beneficial and harmless. For those who need additional intake of theanine, professional physicians or nutritionists can be consulted to tailor a reasonable intake. In summary, the optimal intake of theanine should be determined based on individual circumstances and met through dietary intake.
Side effects of l theanine
L theanine is a unique free amino acid extracted from natural plant tea. Modern research has shown that l theanine has the effects of reducing blood pressure, enhancing memory, alleviating physical and mental fatigue, promoting sleep, and protecting nerve cells. The side effects of long-term consumption of l theanine may cause a decrease in blood pressure and affect liver and kidney function.
1. Lowering blood pressure: L theanine mainly secretes catecholamines and 5-hydroxytryptamine through the central and peripheral nervous systems, thereby playing a role in reducing blood pressure. If taken for a long time, it can lead to excessive blood pressure reduction, and in severe cases, hypotension can occur, affecting physical health. Especially for patients with existing hypotension, long-term use of l theanine is not recommended;
2. Impact on liver and kidney function: The liver and kidneys are organs that metabolize drugs in the human body. If a normal population takes l theanine for a long time, it may increase the burden on the liver and kidneys, leading to damage to liver and kidney function. In severe cases, it can lead to liver and kidney failure. For patients with liver and kidney dysfunction, it is recommended to use or disable l theanine cautiously to avoid worsening the condition.
Conclusion
This article mainly introduces the sources, effects, and side effects of l theanine. there are so many health benefits of l theanine, which is also why many people enjoy drinking tea. But it also has some side effects that you should be aware of. I hope this article is helpful to you.
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2026-07-12
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