L-Theanine for sleep: C → C (2026-07-16)

L-Theanine for sleep: C → C

Source correction by Claude (b2 garbage-source correction): replaced an off-topic search-fallback source (published before the pump's topicality gate existed) with a real, on-topic paper (PMID 40056718, "The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis."). Verdict/grade unchanged; only the provenance was wrong.

What triggered this change

The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis.. Read: Substrate breakdown · PubMed.

What we said before vs now

Before

Grade C

After

Grade C

may improve subjective sleep quality via relaxation rather than sedation

What this does not change

Interaction profile for L-Theanine — unchanged unless there is a separate severity change.
Dose guidance — unchanged unless the new evidence altered the studied dose range.
Safety recommendations — unchanged unless a safety event is recorded separately.

Reviewer & methodology

Reviewed and signed by Substrate editorial (Independent research collective) on 2026-07-16. Methodology v1.

Cite this page

Citation is encouraged. The proposed reuse license is CC-BY-4.0; status: pending-governance-ratification.

Plain-text citation

Substrate. L-Theanine for sleep: C → C. https://evidencebased.info/changes/2026-07-16-theanine-sleep-c-to-c. Updated 2026-07-16.

BibTeX

@misc{substrate_716theaninesleepctoc,
  author = {Substrate editorial},
  title  = {L-Theanine for sleep: C → C},
  year   = {2026},
  url    = {https://evidencebased.info/changes/2026-07-16-theanine-sleep-c-to-c},
  note   = {evidencebased.info}
}