Reuters--Taking zinc may cut the time adults suffer with a commoncold, but consuming it will likely come with unpleasant sideeffects such as nausea, according to a review of past studies. The researchers, whose findings appeared in the Canadian MedicalAssociation Journal, found that the benefits of zinc also appear tobe modest and don't extend to children. But they could add up giventhat there are about 62 million cases of the common cold in theUnited States every year. Michelle Science, from the Hospital for Sick Children in Toronto,and her colleagues compiled data from 17 clinical trials covering2,121 people, comparing those who took zinc orally to another groupthat either took a placebo or received no treatment. The results of our meta-analysis showed that oral zincformulations may shorten the duration of symptoms of the commoncold, Science and her colleagues wrote. However, large high-quality trials are needed before definitiverecommendations for clinical practice can be made. Overall, the researchers noted that in the trials, which includedpeople from one- to 65-years-old, those taking zinc had colds thatwere shortened by a little more than two and a half days comparedto those taking the placebo. Little difference was seen in cold duration in children, though perhaps, said the authors, because adults tended to use a differentform of zinc than children. Peoples' cold symptoms also seemed to clear up faster if they tooka higher dosage of zinc compared to those who took the least. Thevarious studies used different dosages, said Science. While adults who didn't take zinc tended to have colds lasting aweek or more, there was no difference in the severity of coldsymptoms on day three in any of the groups. But side effects were more common in people taking zinc. They were64 percent more likely to experience nausea and 65 percent morelikely to detect an unpleasant taste in their mouths. The authors could not say why zinc stops the rhinovirus, a frequentcause of the common cold, from reproducing, but some believe itacts as an astringent on important facial nerves where viruses tendto congregate. I am an expert from chinagpstrackers.com, while we provides the quality product, such as China Fleet Management Tracking Software , GPS Asset Tracking, Car GPS Trackers,and more.
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