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Head-to-head evidence comparison — which supplement is right for you?
Methylfolate vs Riboflavin: they're closely matched on evidence (6 vs 6.5/10); they're alternatives for prenatal support — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Methylfolate and Riboflavin are closely matched across evidence, studies, and safety.
Verdict
Likely helps
13 of 15 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
8 of 10 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Methylfolate and Riboflavin have evidence — compare verdict strength side-by-side.
400-800mcg daily
Morning with or without food, Consistent daily timing
L-Methylfolate (5-MTHF)
25-50mg for general health; 400mg for migraine prevention
With food for better absorption, Morning with other B vitamins
Riboflavin or Riboflavin-5-Phosphate (R-5-P)
2-4 weeks
1-3 weeks
4-8 weeks
Days to weeks
3 months
2-4 weeks
Immediate
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%).
Effect of Vitamin B2 supplementation on migraine prophylaxis: a systematic review and meta-analysis
Nutritional neuroscience (2022) · Meta analysis · n=673
Vitamin B2 supplementation significantly decreased migraine days (p = .005, I2 = 89%), duration (p = .003, I2 = 0), frequency (p = .001, I2 = 65%), and pain score (p = .015, I2 = 84%).
Effects of selected dietary supplements on migraine prophylaxis: A systematic review and dose-response meta-analysis of randomized controlled trials
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology (2025) · Meta analysis
In adults, compared with placebo, these supplements did not significantly affect other outcomes, and omega-3 supplementation did not yield a statistically significant reduction in any of these outcomes.
Riboflavin supplements for blood pressure lowering in adults
The Cochrane database of systematic reviews (2025) · Meta analysis · n=320
The evidence for the effect of oral riboflavin supplements on systolic and diastolic blood pressure is very uncertain.
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.
Based on meta-analysis showing significant reduction in migraine frequency, days, duration, and pain score. High heterogeneity (I2=65-89%) in pooled analyses suggests variable individual responses. Most studies used 400mg daily dose.
AI-estimated from published studies. Interpret as directional guidance.
Both Methylfolate and Riboflavin are closely matched — the best choice depends on your specific health goals.
For prenatal support, Methylfolate has a higher relevance score (95 vs 78).
No known interactions between Methylfolate and Riboflavin have been documented in our database. However, always consult a healthcare provider before combining supplements.
CoQ10, zinc, selenium, carnitine modestly help sperm parameters — but live-birth evidence is weak.
Folate is essential; inositol + CoQ10 are the best bets — but conception evidence is limited.
Saffron, EPA omega-3, SAMe have real adjunct evidence — but these aren’t a substitute for care, and some interact dangerously.
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.