A randomized controlled trial of vitamin C in the prevention and amelioration of the common cold.
Open Access
- 1 September 1976
- journal article
- clinical trial
- Published by BMJ in Journal of Epidemiology and Community Health
- Vol. 30 (3) , 193-196
- https://doi.org/10.1136/jech.30.3.193
Abstract
A randomized controlled trial of the effect of 1 g ascorbic acid per day in the prevention of the common cold was conducted on 688 adult women. There is evidence of a small reduction by vitamin C in the mean number of chest colds, but no evidence of any effect on simple colds. The existence of a subgroup of vulnerable women in the community who benefit from vitamin C was considered but further examination of the data gives no support to this conclusion.Keywords
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