Many athletes complain about sports drinks giving them stomach discomfort. All we can say about that is: It is history! Vitargo has a very low osmolality, giving you a rapid stomach emptying, in fact, 130% faster than with ordinary sports drinks. The 2nd study made on Vitargo at Karolinska Institute of Sweden shows that. ’ Improved gastric emptying rate in humans of a unique glucose polymer with gel-forming properties’ Scand. J. Gastroenterol 2000;35:1143-1149.