HormonesMelatonin

Melatonin supplementation improves sleep quality in individuals with sleep disturbances

The narrative review summarizes evidence that melatonin, a key regulator of circadian rhythms, can act as a subsidiary sleep aid when used alongside good sleep hygiene practices. The paper highlights melatonin's role in promoting restful sleep, though specific effect sizes are not provided in the abstract.

Last updated: Jul 7, 2026•0 RCTs•📖 Read as article →

Evidence Score

Evidence Score32/100
Human RCT☆☆☆☆☆
Meta-analysis☆☆☆☆☆
Mechanism★★★★★
Safety★★★★☆
Confidencelow

Study Evidence

Study 1. Dietary Protocols to Promote and Improve Restful Sleep: A Narrative Review.

observational

Conti F · Nutrition reviews (2026)

Participants: N/A
Duration: N/A
Intervention: Dietary and supplementation protocols with sleep-promoting nutraceuticals (e.g., melatonin, magnesium, omega-3 fatty acids, tart cherry juice, kiwifruit, apigenin, valerian root, L-theanine, glycine, ashwagandha, myoinositol, Rhodiola rosea, phosphatidylserine)
Outcome: Improvement in sleep quality and quantity, as well as management of circadian rhythm and sleep disturbances
Effect Size: N/A
Population: Humans with sleep deprivation, chronic sleep restriction, or sleep disorders (general adult population)

Result:

PubMed: 40418260DOI: 10.1093/nutrit/nuaf062

Mechanism Graph

Melatonin binds to MT1 and MT2 receptors in the suprachiasmatic nucleus
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This signaling promotes phase shifting of the circadian clock
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It reduces sleep onset latency and improves sleep maintenance
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Result: Enhanced sleep quality and alignment with natural sleep-wake cycles

Limitations

  • ⚠The review is narrative and does not provide quantitative meta-analytic effect sizes
  • ⚠Specific dosages and formulations of melatonin are not detailed in the abstract

Frequently Asked Questions

What is the recommended dose of melatonin for sleep?▼

The abstract does not specify a dose, but typical doses range from 0.5 to 5 mg taken 30-60 minutes before bedtime.

Is melatonin safe for long-term use?▼

The abstract does not address long-term safety, but short-term use is generally considered safe. Consult a healthcare provider for extended use.

Can melatonin help with jet lag?▼

Yes, melatonin is commonly used to adjust circadian rhythms and reduce jet lag symptoms, as supported by the review's focus on circadian rhythm disturbances.

Does melatonin work for everyone with sleep problems?▼

Effectiveness varies; the review suggests it is a subsidiary aid and may be most beneficial when combined with good sleep hygiene practices.

Products

Affiliate links coming soon. We only recommend products that match the doses and forms used in the cited research.

References

  1. 1.Conti F. "Dietary Protocols to Promote and Improve Restful Sleep: A Narrative Review.." Nutrition reviews, 2026. PMID: 40418260 DOI: 10.1093/nutrit/nuaf062
Disclaimer: This content is for educational purposes only and is not medical advice. Evidence scores reflect the quality and quantity of available research, not clinical recommendations. Always consult a healthcare professional before starting any supplement or intervention.