L-theanine is an amino acid. While more research is necessary, possible benefits include managing anxiety, relieving stress, and reducing insomnia. L-theanine is primarily found in green and black tea ...

Theanine, also known as L-theanine, is an amino acid. It is found in tea leaves, especially in green tea and loose-leaf teas. You can consume L-theanine by drinking matcha, green tea, or white tea. It ...

L-theanine is an amino acid typically found in tea leaves and specific types of mushrooms. It is quite popular due to its relaxing effects on the mind and body, making it an attractive supplement for ...

L‑theanine, a non‑protein amino acid predominantly abundant in green‑tea leaves (Camellia sinensis), has been widely studied for its impact on cognition, anxiety, mood, and relaxation. A typical 250 ...

I often encourage my patients to drink tea. Black tea is a lower-caffeine alternative to coffee during the day, and decaffeinated tea can be a calming part of a nighttime power-down ritual before bed.