General Health

Jet Lag

About Jet Lag — General Health.

Circadian disruption from rapid travel across time zones. Affects sleep, digestion, and cognition.

3studies analysed

1compounds with evidence

Systematic reviewstrongest evidence

Where research is strongest

Melatonin 47

Add your outcome — free & pseudonymous

Tried something for Jet Lag? Share how it went — only ever published as part of a group of 10+.

1linked compounds

10linked studies

0published community reports

Results By the numbers Community Research Compounds

Headline results for Jet Lag.

Figures as the studies reported them.

Colour keyReported a benefitNo clear benefitUnclearPossible harmAmber is for highlights, such as where the most research is. It never means a result was good.

Melatonin

3 of 4 results reported a benefit

3 studies, including a review of trials

Jet lag symptomsFor every 2 people treated, 1 more improved than with the comparison1 review of trials2 of 3 results reported a benefit2001 study ↗

Also measured alongside: Body clock shift (reported a benefit).

Every result

Where the evidence is concentrated.

Published research

Jet Lag: findings by compound

What this means: Bars count reported findings, not treatment effectiveness or certainty.

One study may report several findings or appear in more than one pairing. Counts do not show the size of an effect. Comparable numerical estimates are not established for this summary.

View the full data table

Published research: reported directions by pairing
Compound and condition	Findings (count)	Studies (count)	Reported results (finding counts)	How sure?
Melatonin	5	3	Benefit: 3; no benefit: 1; harm: 0; unclear: 1; not recorded / unrecognised: 0	Not formally graded

Degree of benefit for JET LAG

Strongest evidence first.

Published research: JET LAG. Study design is not a certainty grade.
Compound	Study designs	Reported findings
MelatoninResearch score 47/100 · Limited	2 systematic reviews/meta-analyses + 1 randomised trial — 3 studies	3/5 outcomes showed benefit Jet lag symptoms after crossing five or more time zonesFor every 2 people treated, 1 more improved than with the comparisonbenefit2001 study ↗ Exact figures 2 NNT · Follow-up: Not reported · Sample (as reported): Not reported · Recorded unit: Not reported · Melatonin for preventing and treating jet lag. · Systematic Review · systematic-review · PMID 11279722 Symptoms associated with jet lag syndromeReported a benefit — measurement not reportedbenefit2015 study ↗ Exact figures n=11 · Follow-up: Not reported · Sample (as reported): 11 · Recorded unit: Not reported · Is melatonin useful for jet lag? · Meta-Analysis · meta-analysis · PMID 26731279 Circadian phase advance with melatoninReported a benefit — see exact figuresbenefit2011 study ↗ Exact figures 0.72 (p<0.005) n=11 · Follow-up: Not reported · Sample (as reported): 11 · Recorded unit: h · Phase advance with separate and combined melatonin and light treatment. · Randomized Controlled Trial · rct · PMID 21069516 Dose-response of melatonin above 5mg versus 0.5-5mgNo clear benefit found — measurement not reportedno benefit2001 study ↗ Exact figures No figures reported · Follow-up: Not reported · Sample (as reported): Not reported · Recorded unit: Not reported · Melatonin for preventing and treating jet lag. · Systematic Review · systematic-review · PMID 11279722 +1 more outcome →

Important: This page reflects observational, aggregate-only community reporting and independent published research. It is not medical advice, and it does not claim any compound treats, cures, or is effective for any condition. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement or treatment.

No community reports published yet.

We publish jet lag results only once at least 10 people report on the same compound, so no individual report is ever shown.

Melatonin
Research saysResearch score 47/100 · Limited3 of 3 studies reported at least one benefit
People reportNot published yet — needs 10 or more reports