The Claim

Melatonin supplementation is associated with favorable shifts in lipid profiles, specifically reducing total and LDL cholesterol while increasing HDL cholesterol, which may support cardiovascular health.

Source: Comprehensive Effects of Melatonin Supplementation on Cardiometabolic Risk Factors: A Systematic Review and Dose–Response Meta-Analysis

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
45score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

Taking melatonin supplements might help improve your cholesterol levels by lowering the 'bad' types and raising the 'good' type. These small changes could potentially benefit your heart health, though it doesn't seem to affect triglycerides.

See the scientific wording

Melatonin supplementation is associated with favorable shifts in lipid profiles, characterized by reductions in total cholesterol (WMD: -6.97 mg/dL) and LDL cholesterol (WMD: -6.28 mg/dL), alongside an increase in HDL cholesterol (WMD: 2.04 mg/dL). These modest improvements suggest a potential role for melatonin in supporting cardiovascular health, though effects on triglycerides were not significant.

What the research says

1 study
  1. Study: Comprehensive Effects of Melatonin Supplementation on Cardiometabolic Risk Factors: A Systematic Review and Dose–Response Meta-Analysis

    Pooled data from 20 RCTs demonstrated statistically significant mean differences in TC, LDL-C, and HDL-C between intervention and control groups. The consistent directional changes across multiple lipid fractions support a broad lipid-modulating effect.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.