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Vitamin B2 (Riboflavin) Research & Evidence

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This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

Evidence Level

Strong

Riboflavin has strong evidence for migraine prophylaxis. The landmark RCT by Schoenen et al. (1998) demonstrated that 400 mg riboflavin daily reduced migraine attack frequency by 50% compared to placebo, with a responder rate of 59% vs 15%. This finding has been replicated and riboflavin is now recommended by the American Academy of Neurology and the Canadian Headache Society as a Level B evidence migraine preventive. A 2017 review by Thompson and Saluja confirmed its efficacy and noted its excellent safety profile compared to pharmaceutical prophylactics. The mechanism is thought to involve improved mitochondrial energy metabolism in neurons.

Evidence by Condition

ConditionStudied DoseEvidence
General health1.1-1.3 mg dailyStrong
Migraine prevention400 mg daily for at least 3 monthsStrong
Antioxidant support10-25 mg dailyModerate
Full Vitamin B2 (Riboflavin) Guide

References

  1. RCTSchoenen J, Jacquy J, Lenaerts M (1998). Effectiveness of high-dose riboflavin in migraine prophylaxis: a randomized controlled trial. Neurology. DOI PubMed
  2. ReviewThompson DF, Saluja HS (2017). Prophylaxis of migraine headaches with riboflavin: a systematic review. Journal of Clinical Pharmacy and Therapeutics. DOI PubMed
  3. ReviewPowers HJ (2003). Riboflavin (vitamin B-2) and health. American Journal of Clinical Nutrition. DOI PubMed
  4. RCTKałużna-Czaplińska J, Socha E, Rynkowski J (2011). B vitamin supplementation reduces excretion of urinary dicarboxylic acids in autistic children.. Nutrition research (New York, N.Y.). DOI PubMed