5-HTP for Sleep Maintenance

5-HTP has weak sleep evidence and meaningful interaction risk.

Overview

5-HTP has weak sleep evidence and meaningful interaction risk.

Verdict

Insufficient evidence

How It Works

Serotonin precursor feeding downstream melatonin synthesis.

Dosing & Protocol

Typical dose

Recommended dose: 100-300mg at night if trialled
Expected timeframe: 2-4 weeks

Protocol

studied dose: 100-300 mg at night in older, small studies that measured sleep latency rather than maintenance
evidence note: Verdict is insufficient - modern controlled data on night-time awakenings is essentially absent
what happened: Sleep onset shortened in some early work; no adequate modern trial has shown fewer awakenings or longer sleep continuity
better first choices: Rule out alcohol, nocturia, sleep apnoea and evening light before adding a precursor
if you still trial it: Start at 100 mg one hour before bed, keep the trial to 2-3 weeks, and stop if awakenings are unchanged

Evidence

What the studies say

Older small studies suggest reduced sleep latency. Modern controlled maintenance data is essentially absent.

No studies are yet linked to both 5-HTP and Sleep Maintenance.

Safety

Caveats

Serotonin syndrome risk with SSRIs, SNRIs, MAOIs and triptans. Do not combine.

Less likely to help if

People with untreated sleep apnoea, nocturia, chronic pain or alcohol-driven awakenings.

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Individual results may vary. The statements on this website have not been evaluated by the Food and Drug Administration. Products and information are not intended to diagnose, treat, cure, or prevent any disease.