Zinc in the Fight Against the Flu: A Cochrane Review Examines the Effectiveness of a Popular Cold Remedy

The recent Cochrane review has shed light on the effectiveness of zinc as a treatment for the flu. While some studies suggest that zinc may help shorten the duration of the illness, the evidence supporting this is considered weak. In fact, taking zinc preventively does not seem to have a significant impact on preventing the onset of the flu.

Daryl Nault, lead author of the review from the University of Maryland, emphasizes that zinc users should be aware of the limitations of the studies and potential side effects associated with its use. Common complaints reported by patients who were treated with zinc include stomach symptoms, nausea, and an unpleasant taste in the mouth.

The analysis of 34 studies with varying methods and results showed that the evidence supporting the effectiveness of zinc in treating the flu was weak or very weak. Additionally, defining the flu and its symptoms varied among studies, making it difficult to draw definitive conclusions about zinc’s effectiveness.

Despite these findings, ongoing research into treatments and preventions for the flu continues, as its burden remains significant. It is essential for individuals seeking treatment options to consider all available information carefully before making a decision about using supplements like zinc.