One high quality study in 30 people found that taking 200 mg of L-theanine per day significantly improved depression symptoms, sleep quality, cognitive function, and stress compared to a placebo.

L-theanine also shows promise for cognitive and mental health issues, potentially boosting attention and working memory, relieving depression, and improving symptoms caused by attention-deficit ...

In today’s fast-paced world, where stress and anxiety have become common concerns, finding simple and effective ways to ...

L-theanine is an amino acid found in tea. Although L-theanine is associated with several health benefits, no research confirms if it is effective in treating bipolar disorder. L-theanine is a ...

L-theanine influences neurotransmitters that ... chronic insomnia from depression or anxiety, mineral deficiencies (e.g., iron), and more. Supplement use should be individualized and vetted ...