Effect of different beverages after physical activity on markers of intestinal permeability and inflammation in serum of participants. (A) Bacterial endotoxin concentration, (B) i-FABP, (C) CD14, and (D) IL-6 protein concentration after 120 and 180 min in serum of participants following 1 h of physical activity (−60–0 min) at 80% IAT. Values are means ± SEM; n = 17; for (A), * indicates p < 0.05 for water vs. placebo after 180 min; and for (C), * indicates p < 0.05 for placebo vs. test drink. i-FABP = intestinal fatty acid-binding protein; CD14 = cluster of differentiation 14; IL-6 = interleukin 6.