The Claim

Melatonin supplementation is associated with a modest reduction in systolic blood pressure (approximately -2.34 mmHg) across diverse adult populations, though clinical significance varies based on baseline blood pressure and patient characteristics.

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 slightly lower your top blood pressure number by about 2 points. However, how much it actually helps depends on your starting blood pressure and other personal health factors, so the real-world benefit isn't the same for everyone.

See the scientific wording

Melatonin supplementation is associated with a modest reduction in systolic blood pressure, with a pooled weighted mean difference of approximately -2.34 mmHg across diverse adult populations. This effect is observed despite substantial heterogeneity among trials, suggesting that while melatonin may provide a slight antihypertensive benefit, the clinical significance varies widely depending on baseline blood pressure and patient characteristics.

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

    The study confirms that taking melatonin supplements slightly lowers systolic blood pressure by about 2.34 mmHg on average. This matches the claim exactly, showing a small but consistent blood pressure-lowering 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.