SleepCited

Melatonin for Jet Lag

B Moderate

Based on 43 studies (6 meta-analyses, 1 RCT) with 484 total participants. 29/43 studies show positive effects.

Key Statistics

43

Studies

484

Participants

Positive

B Moderate

Grade

Referenced Papers

Paediatrics & child … 2025
Archives of physiology … 2022 69 citations
Current neuropharmacology 2022 40 citations
Chronobiology international 2021 47 citations
Continuum (Minneapolis, Minn.) 2017 132 citations
Sleep medicine clinics 2015 75 citations
Medwave 2015 6 citations
Jet lag. Systematic Review
BMJ clinical evidence 2014
Continuum (Minneapolis, Minn.) 2013 172 citations
Profiles of drug … 2013 26 citations
Chronobiology international 2012 1248 citations
Anaesthesia and intensive … 2011 18 citations
Expert review of … 2010 58 citations
Travel medicine and … 2009 60 citations
Seminars in neurology 2009 17 citations
Arzneimittel-Forschung 2008 89 citations
Jet lag. Systematic Review
BMJ clinical evidence 2008
Sleep medicine 2007 201 citations
The FEBS journal 2006 56 citations
Journal of sports … 2004 135 citations
Best practice & … 2003 339 citations
The Cochrane database … 2002 154 citations
Neuro endocrinology letters 2002
The Cochrane database … 2001 154 citations
Air medical journal 2001 12 citations
Reproduction, nutrition, development 1999 64 citations
Current treatment options … 1999 23 citations
European journal of … 1999
Postgraduate medical journal 1998 17 citations
Medecine tropicale : … 1997
The Netherlands journal … 1996 13 citations

Dosage & Usage

Commonly Used Dosages

general:
0.5-3 mg, 30-60 min before bed
jetlag:
0.5-5 mg

Upper limit: No established UL; 5 mg typically considered maximum

Dosages Studied in Research

Dosage Duration Effect N
low doses melatonin (unspecified); melatonin for jet lag (adults) -- Positive --
Melatonin (various doses); light therapy; chronotherapy (various schedules) -- Positive --
Blue-blocking (amber) glasses worn in the evening -- Mixed 453
melatonin (timed), bright light (timed), stimulants/alertness-promoting drugs -- Positive --
None -- Positive --
various (hypnotics, melatonin, lifestyle/environmental adaptations) -- Mixed --
None -- Positive --
exogenous melatonin (various doses and preparations); melatonin analogues (MT1/MT2 receptor agonists -- Positive --

Best taken: 30-60 minutes before bed

Safety & Side Effects

Reported Side Effects

  • Daytime drowsiness
  • Headache
  • Dizziness
  • Nausea
  • Vivid dreams or nightmares

Known Interactions

  • Blood thinners (warfarin) — may increase bleeding risk
  • Immunosuppressants — melatonin may stimulate immune function
  • Diabetes medications — may affect blood sugar levels
  • Sedatives and CNS depressants — additive drowsiness

Tolerable upper intake: No established UL; 5 mg typically considered maximum

Always consult your healthcare provider before starting any supplement.

Frequently Asked Questions

Does Melatonin help with Jet Lag?
Based on 43 studies with 484 participants, there is moderate evidence from clinical studies that Melatonin may support Jet Lag management. Our evidence grade is B (Moderate).
How much Melatonin should I take for Jet Lag?
Studies have used various dosages. A commonly studied range is 0.5-3 mg, 30-60 min before bed. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of Melatonin?
Reported side effects may include Daytime drowsiness, Headache, Dizziness, Nausea. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for Melatonin and Jet Lag?
We rate the evidence as Grade B (Moderate). This rating is based on 43 peer-reviewed studies with 484 total participants. The overall direction of effect is positive.

Related Evidence

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.