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Tier-BPublic-ready6/13/2026

Melatonin

Glucose and metabolic health markers is closer to a research marker, so it should be read separately from a directly felt benefit.

Representative tier calculated from paper evidence that passed the collection audit.

Papers analyzed
20
Caution signal
Low
Representative score
67.4
Glucose and metabolic health markersStress Response and Sleep ChangesCholesterol and triglycerides

Main benefit evidence

The representative ingredient tier is calculated from these target-level evidence groups.

Glucose and metabolic health
5 studiesTier-B
Glucose and metabolic health markers
Fairly consistent positive signal in studiesResearch marker focusPatient-group study
This card is closer to a measured biomarker or lab outcome than a directly felt user benefit.
Closer to a research marker than a directly felt benefit.
Open metrics
>
Glucose and metabolic markers
No direct rate reported. Read direction and evidence strength together.
Evidence score
56.7
Score reflects signal strength. Tier also considers paper count, repetition, and study context.
Stress and mood
4 studiesTier-B
Stress Response and Sleep Changes
Fairly consistent positive signal in studiesFelt benefit focusPatient-group study
These findings come from stress response, cortisol, anxiety, or sleep outcomes. They may mix felt benefits with physiological markers.
Open metrics
>
Stress and mood balanceSleep quality
No direct rate reported. Read direction and evidence strength together.
Evidence score
54.6
Score reflects signal strength. Tier also considers paper count, repetition, and study context.
Blood lipids
3 studiesTier-B
Cholesterol and triglycerides
Fairly consistent positive signal in studiesFelt benefit focusPatient-group study
Potential benefit studied in Blood lipids.
Open metrics
>
Cholesterol and triglycerides
No direct rate reported. Read direction and evidence strength together.
Evidence score
52.0
Score reflects signal strength. Tier also considers paper count, repetition, and study context.
Blood pressure and vascular health
1 studiesTier-C
Blood pressure and vascular health markers
Some positive signal observedResearch marker focusPatient-group study
This card is closer to a measured biomarker or lab outcome than a directly felt user benefit.
Closer to a research marker than a directly felt benefit.
Open metrics
>
Blood pressure and vascular markers
No direct rate reported. Read direction and evidence strength together.
Evidence score
44.0
Score reflects signal strength. Tier also considers paper count, repetition, and study context.
Immune and respiratory health
1 studiesTier-C
Immune and respiratory support
Some positive signal observedFelt benefit focusPatient-group study
Potential benefit studied in Immune and respiratory health.
Open metrics
>
Immune and respiratory support
No direct rate reported. Read direction and evidence strength together.
Evidence score
44.0
Score reflects signal strength. Tier also considers paper count, repetition, and study context.

Recent research

Updated This Month10 new papers

10 new papers were added in this period. No new risk signal was identified.

What's new

10 new papers were added.No new risk signal was identified.

Most notable recent finding

This is the most meaningful new study in the latest update.
review
Why it mattersIt ranked highest among the newly collected papers for this ingredient in the latest update.
View paper

Study dosage range (reference only)

Lower dose
6
mg/day
Higher dose
6
mg/day
Dosages used in research papers, shown as reference context.
Not personal dosing instructions, recommendations, or safety limits.

Key cautions to review

Standalone side-effect signals and combination cautions are listed separately.

Caution index
0.3
Caution band: Low
Caution signals
0
Side effects + combos + curated rules
Key precautions
No combination caution signal is clear enough to show right now. This does not guarantee safety.
1 combo signals and 0 added-signal combos shown below.
Standalone side effects, combination cautions, and positive combos are separated below.

Combinations studied together

The group showed a positive signal, but individual contributions are hard to isolate. Not a stack recommendation.

+MagnesiumCo-supplementation with magnesium and melatonin significantly reduced testosterone levels compared to placebo.

Evidence summaries

Paper IDs and full lists are private. Only study types and summaries are shown.

Key Evidence #1
Public scholarly dataCitation signal: 87
observational

Melatonin supplementation facilitated body weight reduction, improved the antioxidant defense, and regulated adipokine secretion in obese patients on a calorie-restricted diet, strongly suggesting that melatonin should be considered in obesity management.

Key Evidence #2
Public scholarly dataCitation signal: 87
observational

Melatonin intake was shown to have a significant impact on improving Oxidative stress parameters, however, future research through large, well-designed randomized controlled trials are required to determine the effect of melatonin on oxidative stress parameter

Key Evidence #3
Public scholarly dataCitation signal: 79
observational

It is observed that intrafollicular concentrations of melatonin were blunted in women with unexplained infertility (UI), which was associated with a marked oxidative imbalance in UI patients’ FF, and this translated into a slight increase in the rate of pregna

3 more summariesLimited representative sample by study type.
>
Public scholarly dataCitation signal: 77
observational

Melatonin was associated with better sleep quality, which suggests its possible role in the routine care of critically ill patients in the future.

Public scholarly dataCitation signal: 68
observational

Overall, melatonin supplementation for 12 weeks to patients with PD had favorable effects on the UPDRS part I score, PSQI, BDI, BAI, hs-CRP, TAC, GSH, insulin levels, HOMA-IR, total-, LDL-cholesterol, and gene expression of TNF-α, PPAR-γ and LDLR, but did not

Public scholarly dataCitation signal: 62
observational

There is a positive effect of melatonin supplementation in rooster semen freezing extenders on post-thawed sperm quality, and there was a decrease in the amount of lipid peroxidation, DNA fragmentation, and apoptotic-like changes after thawing.

Melatonin
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