The Claim
Oral vitamin C supplementation at doses of 200 mg or more daily does not significantly reduce the incidence of common colds in the general population, with a relative risk of 0.96 (95% CI 0.92 to 1.00) based on 29 trials involving 11,077 participants.
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 vitamin C pills every day doesn't really help prevent colds for most people, according to studies with thousands of participants.
See the scientific wording
Oral vitamin C supplementation at doses of 200 mg or more daily does not significantly reduce the incidence of common colds in the general population, with a relative risk of 0.96 (95% CI 0.92 to 1.00) based on 29 trials involving 11,077 participants.
What the research says
1 studyStudy: Vitamin C for preventing and treating the common cold.
The study looked at whether taking vitamin C pills every day prevents colds and found it doesn't really stop people from getting colds, which matches exactly what the claim says.
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.