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Published online 28 June 2005 | Nature | doi:10.1038/news050627-4
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Vitamin C best in the cold
Supplement protects only in chilly climes.
Upping your intake of vitamin C to ward off the common cold makes sense if you’re an extreme skiier or mountaineer, researchers say. But a review of 55 studies carried out over 65 years shows that prophylactic use of this vitamin in everyday circumstances has little effect.
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