Introducing L-Theanine :

L-theanine is an amino acid naturally present in green tea leaves. This substance with relaxing and anxiolytic properties that helps reduce stress, anxiety and improve the quality of sleep. In addition to its mental health benefits, L-theanine also has properties that can improve cognitive performance, such as concentration and memory.

L-theanine is a non-essential amino acid, which means that our body can produce it on its own. However, it is also available as a dietary supplement for those looking to get benefits from it.

It is mainly found in green tea leaves, but it is also found in certain species of fungi and plants such as Boletus badius, Pleurotus ostreatus and Ganoderma lucidum which contain l-theanine in their spore, and Plants of Asparagus officinali which contains it in their leaf.

It is important to note that these plants and mushrooms can vary in L-theanine content and it is important to consult a healthcare professional before using them. It is also important to note that this list is not exhaustive and that there may be others.

In this article, we'll explore the properties of L-theanine, its mental and physical health benefits, and how to use it for optimal results. We also look at the different forms of L-theanine available, including supplements and foods that contain it. Finally, we discuss the potential side effects of L-theanine and precautions to take when using it.

Properties of L-theanine :

Relaxing and anxiolytic effects : L-theanine is known for its relaxing and anxiolytic properties. It can help reduce stress and anxiety by increasing levels of acetylcholine, GABA and dopamine in the brain. It can also increase the production of alpha brain waves, which are associated with a state of relaxation and calm.

Effects on memory and concentration : L-theanine may also improve cognitive performance. It has been shown to increase the ability to focus and pay attention, as well as improve working memory. It can also increase creativity and problem solving.

Other Health Benefits : In addition to its relaxing and cognitive properties, L-theanine may have other health benefits. It has been shown to improve sleep quality, reduce symptoms of depression and anxiety, and even have anti-inflammatory and anti-cancer effects.

It's important to note that although L-theanine has been shown to have these effects, it's important to consult a doctor before you start taking it to make sure it's right for your condition.

Use of L-theanine :

Dietary supplements:

L-theanine is available as a dietary supplement, usually in tablets or powder.

Foods High in L-Theanine:

L-theanine occurs naturally in green tea leaves, but it can also be found in certain species of fungi and plants. Drinking green tea can be a natural way to get higher levels of L-theanine in your diet.

The amount of L-theanine present in different types of tea varies depending on several factors, such as the variety of tea, the cultivation and production method used, and the time of leaf picking.

• Green tea: Green tea leaves generally contain between 1 and 2% L-theanine. Premium green teas, such as gyokuro and matcha teas, tend to contain higher levels of L-theanine.
• Black tea: Black tea leaves generally contain less L-theanine than green tea leaves. Most black teas contain between 0.2 and 0.4% L-theanine.
• White Tea: White tea leaves typically contain 1-2% L-theanine, similar to green tea.
• Oolong tea: Oolong tea leaves generally contain between 0.5 and 1% L-theanine.

Recommended dosage:

It is generally recommended to take between 100 and 200 mg of L-theanine per day to obtain relaxing and anxiolytic effects. For effects on memory and concentration, doses can range from 200 to 400 mg per day. It is important to follow the manufacturer's instructions and consult a physician before beginning to use dietary supplements. It is also important to note that recommended doses may vary depending on individual needs and health status. It is always better to start with a lower dose.