06 Nov 2018 --- Wellmune’s immune health halo has expanded with a recent study highlighting its potential for marathon runners. The study found that consuming beverages fortified with the yeast beta-glucan ingredient, supplied by Kerry, can reduce the severity and impact of upper respiratory tract infection (URTI) symptoms associated with intense exercise stress. The ingredient is particularly suitable for beverage applications and athletes’ concerns over immune health present a clear market opportunity for beverage innovators.