Myth: Vitamin C Prevents Colds

A widely held belief is that taking vitamin C can prevent the common cold, prompting many to consume high doses of this vitamin during cold and flu season. This myth has been popularized by marketing and anecdotal evidence.

While vitamin C is essential for immune function and overall health, research indicates that it does not prevent colds. A review published in the Cochrane Database of Systematic Reviews found that regular vitamin C supplementation does not reduce the incidence of colds in the general population, although it may reduce the duration and severity of symptoms for some individuals. A balanced diet rich in fruits and vegetables is the best way to ensure adequate vitamin C intake. Understanding the limitations of vitamin C in cold prevention can help individuals approach supplementation with realistic expectations and focus on a well-rounded diet for immune support.