Scientific consensus contradicts this claim.

Not medical advice — just what the research says.

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What the evidence found 3 findings
Based on 13 sources:
PubMed peer-reviewed View
NBC News news View
2 Minute Medicine institutional View
American College of Cardiology institutional View
Chiro.org institutional View
PMC peer-reviewed View
PubMed peer-reviewed View
PMC Article on Dietary Supplements and Cancer Prevention peer-reviewed View
PMC Article on Multivitamin Use and Cancer Risks peer-reviewed View
ResearchGate Publication on NIH-AARP Study peer-reviewed View
PubMed peer-reviewed View
PMC peer-reviewed View
ResearchGate peer-reviewed View
Based on 12 sources:
PMC article on vitamin deficiency prevention peer-reviewed View
PMC article on multivitamin supplement use peer-reviewed View
American Medical Association institutional View
PMC - Folic Acid and the Prevention of Birth Defects: 30 Years peer-reviewed View
US Preventive Services Task Force institutional View
Oxford CTSU institutional View
WHO institutional View
CDC institutional View
PMC peer-reviewed View
StatPearls - NCBI Bookshelf institutional View
Cureus peer-reviewed View
WHO IRIS institutional View
Based on 7 sources:
Fortmann et al. Annals of Internal Medicine 2013 peer-reviewed
Physicians' Health Study II randomized controlled trial peer-reviewed View
Multivitamins in the prevention of cardiovascular disease in men peer-reviewed View
PubMed peer-reviewed View
PMC - NIH peer-reviewed View
Science Direct peer-reviewed View
PMC - NIH peer-reviewed View
What research hasn't answered 3 gaps
PubMed peer-reviewed View
NBC News news View
2 Minute Medicine institutional View
American College of Cardiology institutional View
Chiro.org institutional View
PubMed peer-reviewed View
NBC News news View
2 Minute Medicine institutional View
American College of Cardiology institutional View
Chiro.org institutional View
Sources 18 findings
argumentation Unknown
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tree-leaf argumentation
tree-leaf argumentation
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Generated by reaso.ai's editorial pipeline: claim restated, scientific consensus classified via 3-run majority vote, 18 findings enriched with attribution and study type, narrative written in neutral voice. No individual researcher has signed off on this specific analysis — see methodology for how the pipeline works. Built with Claude Sonnet by Anthropic. Updated April 16, 2026. How we do this →

Written by AI. Sources are linked for verification.