Ginseng and infection protection

Scientists in Canada say ginseng can help reduce the risk of developing a cold. According to a team at the University of Alberta, just one in 10 people, in a study group of 323, given ginseng capsules daily caught two colds or more in a four month period ? in those who did not use the supplement the figure is one in four. The researchers found also that ginseng reduces the severity of colds, says the Canadian Medical Association Journal

BBC