Vitamin C and the common cold
1978
Anderson, Terence W.
Extract: Carefully controlled experimental studies have failed to support claims that the intake of large doses of vitamin C will prevent or cure the majority of colds. However, an increased regular intake or a large therapeutic dose at the time of illness may have a small beneficial effect and this effect appears to be on severity rather than frequency or total duration of colds. The magnitude of the effect probably varies between individuals, in different environments and possibly according to the type of infecting agent. The use of very high doses of vitamin C might be harmful to some individuals.
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