Taking oral zinc may reduce the duration and severity of your cold symptoms, but only if you’re an adult. Even then, the results are mixed. Although higher doses seem to be more effective, but may also cause side effects including nausea and a bad taste. Authors of a recent study reported in the Canadian Medical Association Journal conclude, “Until further evidence becomes available, there is only a weak rationale for physicians to recommend zinc for the treatment of the common cold. The questionable benefits must be balanced against the potential adverse effects.” The study involved 2,121 people ranging in age from 1 to 65 years.

Read full article here: Oral Zinc Found To Reduce Common Cold Symptoms In Adults More Than Kids