Creatine Monohydrate- Creatine derives the name from the Greek origin, kreas, which stands in for flesh. It is occurring in vertebrates naturally and is a nitrogenous organic acid. The most common source of creatine is fresh meat, which makes the use of supplements for vegetarians and vegans a must. Humans are able to biosynthesize creatine from other amino acids, like methionine, glycine and arginine, which comprises about the half of the daily needed amounts. Creatine is being stored in skeletal muscles. While creatine is not providing to the athletic endurance, it increases power when doing short but high in intensity work outs. Naturally, creatine supplements thereby provide an ideal aid for muscle building athletes, particularly because they are not considered doping. With creatine, body mass gains of up to 1kg per week are normal.