Creatine is a protein that the body can make using three amino acids (arginine, glycine and methionine). It can be found in foods such as meat and fish, however not in high quantities. High doses can be achieved through supplementation.
How it works
The muscle stores of a protein called phosphocreatine are limited. Creatine supplementation raises these limited stores. According to Hultman et al (1996) they are raised typically by around 2%. (more…)