causal
Analysis v1
Strong Support
Taking vitamin C and zinc together works better than a fake pill at reducing runny nose symptoms when you have a cold, based on a review of 94 people across two studies.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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A Combination of High-Dose Vitamin C plus Zinc for the Common Cold
Randomized Controlled Trial
Human
2012The study looked at giving vitamin C and zinc for colds and found it really helps reduce runny noses, 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.