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Head-to-head evidence comparison — which supplement is right for you?
Melatonin vs Methylfolate: Melatonin has the stronger overall evidence (8.5 vs 6/10); they're alternatives for fertility support — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Melatonin wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
14 of 19 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
13 of 15 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Melatonin and Methylfolate have evidence — compare verdict strength side-by-side.
0.5-1mg
30-60 minutes before bed
Immediate-release tablet or sublingual
400-800mcg daily
Morning with or without food, Consistent daily timing
L-Methylfolate (5-MTHF)
and 6 more not shown
Same night
1-3 days
Next morning
First week
2-4 weeks
1-3 weeks
4-8 weeks
Days to weeks
Melatonin in cancer treatment
The Cochrane database of systematic reviews (2025) · Meta analysis · n=126
We downgraded the certainty of the evidence because of high risk of bias, small sample size, the width of the 95% confidence interval, and indirectness due to inadequate reporting of cancer type.
Comparative Efficacy, Tolerability, and Acceptability of Donanemab, Lecanemab, Aducanumab, Melatonin, and Aerobic Exercise for a Short Time on Cognitive Function in Mild Cognitive Impairment and Mild Alzheimer's Disease: A Systematic Review and Network Meta-Analysis
Journal of Alzheimer's disease : JAD (2024) · Meta analysis · n=4599
Melatonin may be a better potential disease-modifying treatment for cognitive decline in mild AD and MCI.
Melatonin for sleep disorders in people with autism: Systematic review and meta-analysis
Progress in neuro-psychopharmacology & biological psychiatry (2023) · Meta analysis · n=595
According to the global analysis, the wake after sleep onset and night awakening parameters were not statistically significant.
Efficacy of B-vitamins and vitamin D therapy in improving depressive and anxiety disorders: a systematic review of randomized controlled trials
Nutritional neuroscience (2023) · Systematic review · n=2256
Systematic review examining Methylfolate efficacy
Systematic Review and Meta-Analysis of L-Methylfolate Augmentation in Depressive Disorders
Pharmacopsychiatry (2022) · Meta analysis · n=6707
In the meta-analysis of categorical Hamilton Rating Scale for Depression-17 response, (three studies, N=483) adjunctive L-methylfolate was associated with a small effect versus antidepressant monotherapy (relative risk: 1.25, 95% confidence interval [CI]=1.08 to 1.46, p=0.004).
Folic acid/methylfolate for the treatment of psychopathology in schizophrenia: a systematic review and meta-analysis
Psychopharmacology (2018) · Meta analysis · n=925
Pooled FA + AP treatments were more effective than placebo + AP for negative symptoms (N = 5, n = 281; SMD = -0.25, 95% CI = -0.49, -0.01, p = 0.04, I2 = 0%).
Based on meta-analyses showing 7-12 minute reduction in sleep onset. Higher doses showed diminishing returns and increased morning grogginess. Sublingual forms may be more effective at lower doses.
Based on meta-analysis showing small effect size for adjunctive L-methylfolate. RCT showed efficacy at high doses but effectiveness appears modest. Risk increases with higher doses due to overmethylation symptoms.
AI-estimated from published studies. Interpret as directional guidance.
Melatonin has a higher evidence score (8.5/10 vs 6/10) and wins in 2 of 3 categories.
For fertility support, Methylfolate has a higher relevance score (95 vs 85).
No known interactions between Melatonin and Methylfolate have been documented in our database. However, always consult a healthcare provider before combining supplements.
The honest tier list — proven staples vs situational vs mostly marketing. The hub the other guides feed into.
When to take what, with or without food, and which supplements compete vs pair well.
Melatonin, magnesium, glycine, L-theanine — tiered by evidence, plus a wind-down timeline.
Commonly recommended vs ask-your-clinician vs avoid — a general, safety-first overview.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.