Calming effects of L-theanine

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What is L-theanine?

L-theanine is an amino acid, commonly found in green tea leaves. L-theanine has been used historically as a relaxing agent. It calms the mind without causing drowsiness. Thus oral intake of L-theanine supplements can help to manage stress. It also helps increase focus and plays a role in managing blood pressure

Is it safe to consume L-theanine supplements?

L-theanine supplements are generally safe. However, if you have any medical condition or during pregnancy and lactation, do consult a doctor before starting a regime.

What are the key benefits of L-theanine supplements?

L-theanine has been widely used as a relaxing agent for decades. L Theanine calms your mind and thus reduces stress. It provides this calming effect without causing drowsiness and hence is suitable to be taken during the day as well. L-theanine also helps you focus well by calming the ‘noise’ in your head.

Do L-theanine supplements really work?

L-theanine has been widely studied and its effects documented in several scientific studies. In one human study, it was shown to normalize heart rate under acute stress and reduce markers of stress. Various animal studies suggest that L-theanine increases brain serotonin, dopamine, GABA levels and improvement in learning and memory. 

Another study provides support to the understanding that L-theanine promotes relaxation without causing drowsiness.

L-theanine in combination with caffeine was shown by another study to help in focusing attention during a demanding cognitive task.

https://www.ncbi.nlm.nih.gov/pubmed/16930802
https://www.ncbi.nlm.nih.gov/pubmed/17182482
https://www.mdpi.com/2306-5710/2/2/13/htm
https://www.tandfonline.com/doi/abs/10.1179/147683010X12611460764840