The Claim
Melatonin supplementation is associated with a reduction in fasting blood glucose levels, with an average decrease of 11.63 mg/dL observed in adult populations, particularly among those with normal or mildly elevated baseline glucose concentrations.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Taking melatonin supplements seems to lower fasting blood sugar levels in adults by about 11.6 mg/dL on average. This effect is strongest in people whose blood sugar is already normal or only slightly high, but researchers caution that the current evidence isn't strong enough to rely on melatonin as a main treatment for blood sugar control.
See the scientific wording
Melatonin supplementation is associated with a reduction in fasting blood glucose levels, averaging a decrease of 11.63 mg/dL in adults. The effect appears most pronounced in individuals with normal baseline glucose or mild elevations, though high heterogeneity and low certainty evidence indicate that melatonin should not be relied upon as a primary glycemic intervention.
What the research says
1 studyMeta-analysis of 20 RCTs directly compared FBG changes between melatonin and placebo groups, yielding a statistically significant pooled reduction. Subgroup analyses further indicated stronger effects in males and those with normal baseline BMI.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.