Can't shut your brain off at night? Here's what L-theanine actually does for sleep, per recent research.

L-theanine for sleep: Everything families need to know before trying this natural sleep aid alternative ...

Here's what new 2025 research actually says about taking L-theanine for improved sleep quality at night.

Add Yahoo as a preferred source to see more of our stories on Google. However, as with most wellness trends, the benefits of taking L-theanine aren't quite that straightforward. While it's true that L ...

Ingredients like black cohosh, L-theanine, and maca root are often included in menopause supplements. Do they actually help?

L-theanine is an amino acid that occurs naturally in tea leaves and is used in Asian medicine to treat many medical and mental health problems. In a previous blog post, I briefly reviewed the evidence ...

The amino acid l-theanine found in green tea is widely used in China, Japan, and other Asian countries to treat anxiety and depressed mood. Animal studies confirm that l-theanine increases brain ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Who wouldn't want to take a pill and quickly experience less stress and anxiety without unpleasant side ...