Theanine is an amino acid that is not commonly found in the human diet, as it is not one of the essential or nonessential amino acids. L-theanine is often called a non dietary amino acid.
Theanine is known to reach the brain quickly following oral consumption, L-theanine is an amino acid found most commonly in tea leaves and in small amounts in Bay Bolete mushrooms.Theanine has a chemical structure very similar to glutamate, a naturally occurring amino acid in the body that helps transmit nerve impulses in the brain. Some of the effects of theanine appear to be similar to glutamate, and some effects seem to block glutamate.
L-theanine uses and many other potential health benefits
- Anxiety and stress-relief
- Increased focus
- Better immunity
- Blood pressure control
- Improved sleep quality
- Sinusitis relief
L theanine for anxiety
Intake of theanine can significantly reduce symptoms of anxiety, such as a racing heartbeat and increased secretion of immunoglobulin A in saliva. Its effects are somewhat similar to those of a sedative,but it doesn't make you drowsy .
It is Effective anxiolytic, which helps to prevent the brain from producing an anxious response to stressful situations.
Theanine helps to regulate serotonin levels and dopamine levels in the body, which are chemicals that are ultimately responsible for mood. It is also thought that it can increase levels of a protein called brain-derived-neurotrophic-factor, keeping the brain healthy. When the brain is better able to manage stress, it improves in all of its other functions: memory, cognition, attention, etc
Melatonin and L theanine
Melatonin, which is naturally produced by the pineal gland in the brain, helps reset the body’s sleep/wake cycle whereas L-theanine, a naturally occurring amino acid found in green tea, helps put your mind at ease so you can fall asleep faster.
L theanine for sleep
L-theanine promotes relaxation and facilitates sleep by contributing to a number of changes in the brain.
Boosts levels of GABA and other calming brain chemicals. L-theanine elevates levels of GABA, as well as serotonin and dopamine. These chemicals are known as neurotransmitters, and they work in the brain to regulate emotions, mood, concentration, alertness, and sleep, as well as appetite, energy, and other cognitive skills. Increasing levels of these calming brain chemicals promotes relaxation and can help with sleep.
Lowers levels of “excitatory” brain chemicals. At the same time it is increasing chemicals that promote feelings of calm, L-theanine also reduces levels of chemicals in the brain that are linked to stress and anxiety. This may also be a way that L-theanine can protect brain cells against stress and age-related damage.
Enhances alpha brain waves. Alpha brain waves are associated with a state of “wakeful relaxation.” That’s the state of mind you experience when meditating, being creative, or letting your mind wander in daydreaming. Alpha waves are also present during REM sleep. L-theanine appears to trigger the release of alpha-waves, which enhances relaxation, focus, and creativity.
That can make L-theanine a good choice for people who are looking to enhance their “wakeful relaxation,” without worrying about becoming sleepy and fatigued during the day.
L-theanine rich foods
Theanine is found in various foods, including green and black teas, white tea, C. japonica and C. sasanqua, and a mushroom called Xerocomus badius.
Unfortunately, there are very few opportunities for theanine consumption in the everyday western diet. In Japan, theanine is added to many foods, such as desserts, soft drinks, and herbal teas, but in the United States black teas and green teas are generally the only easily accessible sources.
It is often advised that people take an L-theanine supplement, which can be in the form of L-theanine tablets, L-theanine capsules, or L-theanine powder.
L theanine anxiety side effects
Theanine might increase the risk of blood pressure dropping too low in people prone to low blood pressure ,hence cause cold feeble body and increased confusion
Hence it is advisable to take proper consultation of a Health practitioner or Dietitian if you are on any medication before starting any herbal products, so that there is no Drug nutrient Interaction.