L-Tryptophan / 5-HTP for Sleep latency and L-Tryptophan / 5-HTP
Each entry’s own grades, side by side. A grade says how strong the evidence is for one outcome — it does not rank one entry over the other.
Evidence brief
L-Tryptophan / 5-HTP for Sleep latency
Evidence grade C — Modest
Grade C1 graded outcomerevised Jul 10, 2026
Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.
Compound or practice
L-Tryptophan / 5-HTP
Serotonin/melatonin precursors with modest sleep-and-mood signals — and the sharpest serotonergic-drug caution on the shelf.
Grade C2 graded outcomesrevised Jul 10, 2026
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
Graded in both
Outcomes are matched by name. Two entries can describe the same outcome in different words, so one listed further down may still be graded in the other.
| Outcome | L-Tryptophan / 5-HTP for Sleep latency | L-Tryptophan / 5-HTP |
|---|---|---|
| Sleep latency | Evidence grade CSmall effectmixedModest | Evidence grade CSmall effectmixedModest |
Graded only in L-Tryptophan / 5-HTP for Sleep latency
None — every outcome it grades is graded in both.
Graded only in L-Tryptophan / 5-HTP
- Mood / anxiety (5-HTP) Small effectEvidence grade C
What each entry says about the other
- L-Tryptophan / 5-HTP for Sleep latency’s entry · Goes with: Read the full L-Tryptophan / 5-HTP monograph
Both columns are read from the entries as they stand in this library. A comparison is not advice to take either one, and it is no substitute for a clinician who knows the person.