A recent Cochrane review has shed light on the effectiveness of zinc as a treatment for the flu. While many flu patients turn to zinc tablets for relief, the evidence supporting this claim is weak. The review analyzed various research studies on zinc’s impact on flu symptoms and employed rigorous methods to evaluate its effectiveness.
Results showed that taking zinc may reduce the duration of flu symptoms by approximately two days compared to a placebo. However, taking zinc preventatively did not seem to significantly prevent the onset of the flu. Despite some promising findings regarding symptom duration, the review did not provide clear evidence that zinc alleviates the severity of flu symptoms. Additionally, individuals taking zinc experienced side effects more frequently than those taking a placebo, with common complaints including stomach issues, nausea, and an unpleasant taste in the mouth.
The lead author of the review, Daryl Nault from the University of Maryland, emphasizes the importance of weighing the risks of potential side effects against the uncertain benefits of zinc treatment. Ultimately, individuals should make their own decision about whether to take zinc for their flu symptoms.
Despite some promising laboratory experiments suggesting that zinc may inhibit virus growth, it remains unclear whether this translates to similar effects in humans. The flu is a common viral infection that typically resolves on its own, but its high prevalence underscores the need for effective treatments and preventive measures such as practicing good hygiene and getting vaccinated when available.
