Vitamin C And The Common Cold
The common cold is caused by several groups of viruses including rhinoviruses, coronaviruses and respiratory syncytial virus. Colds are the leading cause of doctor's visits and the number one reason for absences from work and school. While human and animal studies have shown that vitamin C does significantly improve immune function, over 40 years of research suggest that vitamin C does not prevent the common cold or decrease the severity of symptoms in non-athletic people. It may be helpful for highly active people training in stressful conditions.
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