The VO2 max value is a significant indicator of an athlete’s physical fitness. VO2 BOOST aims specifically at improving athletic performance. The main ingredients include the AAKG amino-acid, citrulline malate, and iron for oxygen transfer in the body, fatigue reduction, as well as vitamin C for a normal immune system function. In addition, the recommended dose of 4 tablets contains 200% of the recommended daily amount of vitamin B1, contributing to normal energy metabolism and proper heart function.