Analysis of information sources in references of the Wikipedia article "普通感冒" in Chinese language version.
In this review, there was a high level of heterogeneity between the studies that were pooled to determine the effect of zinc on the duration of cold symptoms. This may suggest that it was inappropriate to pool them. It certainly makes this particular finding less conclusive.
Although studies examining the effect of zinc treatment on cold symptoms have had somewhat conflicting results, overall zinc appears to be beneficial under certain circumstances.
Although studies examining the effect of zinc treatment on cold symptoms have had somewhat conflicting results, overall zinc appears to be beneficial under certain circumstances.
In this review, there was a high level of heterogeneity between the studies that were pooled to determine the effect of zinc on the duration of cold symptoms. This may suggest that it was inappropriate to pool them. It certainly makes this particular finding less conclusive.