21 Nov 2019 --- As the days draw shorter and shorter, winter is no doubt just around the corner. Coming with the season is a barrage of consumers seeking to fight off seasonal sniffles, as immune systems everywhere are threatened by increased time spent in crowded spaces indoors. Nutrition can have a major impact on immunity, with companies eager to promote their health-boosting products. NutritionInsight speaks to some key players in this space and learns how the face of immunity is changing this season, especially when consumers with increased access to information grow more wary.