L-theanine
Also known as: theanine
Classification
Unknown
Regulatory Status
n/a
Sources
1
Review
n/a
Overview
L-theanine is an amino acid from tea discussed for relaxation. A mechanism and effect size are not established here.
Evidence and limitations
Human/preclinical evidence breakdown is not available in this record.
Pathways
glutamate-signalingrelaxation discussionL-theanine
Benefits
A PubMed systematic review and meta-analysis examined cognitive and affective effects of L-theanine across randomized trials.
Interactions & cautions
Flagged in source data
caffeine
These are observational flags for review, not individualized instructions.
Sources
Educational reference only — not medical advice.
What people report (anecdote)
CLINICAL DATA (from trials)
Adverse events:
None recorded in our sources.
Effects measured:
Human trials: none found.
ANECDOTE
What people report: anecdote, not evidence
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