The investigators hypothesis is as follows: Compared to a sports drink with identical macro nutrient composition, a sports drink with milk fat globule membrane (MFGM) will reduce the change in gut leakiness induced by running at 90% VO2max for 30 minutes. The decrease in gut permeability change will be associated with a decreased area under the curve of plasma endotoxin for 5 hours following the exercise. In addition, decreased gut permeability will be associated with lower area under the curve values for inflammatory cytokines.