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L-Theanine
Emerging research
An amino acid found mainly in tea leaves. Often discussed in relation to calm focus, especially alongside caffeine.
Often discussed in relation to
Commonly noted
- Commonly noted
- L-theanine is an amino acid found characteristically in tea from the Camellia sinensis plant; NIH PubChem catalogues it as compound CID 439378.
Source: NIH PubChem
Foods and products containing it
Green teaReferences
- NIH / NLM PubChem: L-Theanine
Reference for the substance’s identity. This does not establish a health benefit or a product’s composition.