causal
Analysis v1
Strong Support
Taking vitamin C pills cuts your chances of catching a cold in half if you're doing really tough activities like running marathons, skiing, or military training in freezing cold places.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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Vitamin C for preventing and treating the common cold.
Systematic Review With Meta-Analysis
2007 Jul 18The study looked at whether taking vitamin C pills every day helps prevent colds, especially in people like marathon runners or soldiers in cold places. It found that for these groups, vitamin C cuts the chance of getting a cold in half, just like the claim says.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.