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.

33
Pro
0
Against

Evidence from Studies

Supporting (1)

33

Community contributions welcome

33

Vitamin C for preventing and treating the common cold.

Systematic Review With Meta-Analysis
2007 Jul 18

The 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.