Creatine is an endogenous compound synthesisedfrom arginine, glycine and methionine and isstored mainly (95%) in skeletal muscleskeletal muscle, where it is found in free form or boundto a phosphate molecule (phosphocreatine). Thebest known physiological effect of creatine is its rolein maintaining intracellular levels of adenosinetriphosphate (ATP), thanks to which phosphocreatine(PCr) readily donates its phosphate moleculeto adenosine diphosphate (ADP) to (re)form ATP [2].During intense and brief (anaerobic) exertionof a few seconds, ATP levels are keptconstant by the rapid conversion of PCr into creatine.Short- and long-term creatine supplementationshowed significant ergogenic improvementsof strength, hypertrophy and performance in groups of athletes(including women) trained and untrained athletes compared to placebo [3].Creatine supplementation is recommended for sportsthat involve high-intensity sprints, numerousaccelerations and final sprints such as cross-country skiingmountain biking, team sports, swimming, rowing, triathlon androwing, triathlon and cycling.