9/4/2026
Vital Signs · nutrition

Vitamin C won’t prevent most colds, but it may do one small thing

Filed by Dr. Iris Vale
Vitamin C won’t prevent most colds, but it may do one small thing
The belief that huge doses of vitamin C can ward off colds was popularized more than 50 years ago by Nobel Prize winner Linus Pauling. Since then, larger studies have found that vitamin C does not prevent most people from catching a cold, although regularly taking it may make severe symptoms slightly shorter or milder.
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Dr. Iris Vale
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Vitamin C won’t prevent most colds, but it may do one small thing — Vital Signs