BioSteel Sports Drink (BSD), a proprietary blend of branched chain amino acids, taurine, and B vitamins, has increased its popularity among professional and amateur athletes. BioSteel claims that BSD attenuates muscular and mental fatigue, and enhances recovery when consumed before and during intense exercise. To date, the efficacy of BSD on attenuating muscular and mental fatigue, and enhancing recovery during repeated bouts of intense exercise is unknown. In a blind crossover study, participants will be subjected to sprint interval exercise followed by muscular and cognitive function testing under two conditions: BSD and isoenergetic control.