Our immune system is constantly busy, keeping away intruders like viruses, bacteria and other germs. In the cold months of the year, when everybody is closer together and more likely to stay inside, our immune system is especially challenged. The dry heated air dries up our mucous membranes and if a sneeze does not land on the handkerchief, the cold viruses have an easy living. In this case, the immune system needs our full support. Find out how zinc and vitamin C help to support the normal function of the immune system (especially during the flu season)!