Creatine naturally occurs in the body; it is present in every human cell and functions as an energy store. Depending on body weight and muscle mass, the body stores between 100 and 150gms of Creatine, of which about 2 to 4gms are used every day for normal activity. Half of the required Creatine is produced by the body itself, the rest must be obtained daily from food. For an optimal supply of Creatine, 500g of raw meat or raw fish must be consumed every day. Because this is hardly feasible in practice, supplementary Creatine makes sense and is recommended. Creatine is the subject of more than 300 studies, it is one of the most researched of all supplements. Creatine is universally recognised as offering the potential to increase maximal strength and endurance by up to 15% in speed sports as well as intensive weight training, even in the short term. Improvement can be as high as 20% for maximal strength in interval training; approximately 30% for power increase and energy release in short sprints and up to 15% in training for repeated sprints. Creatine intake also results in improved concentration, higher endurance in training and faster recovery.