Creatine (methyl guanidine-acetic acid) is a compound that occurs naturally in the human body. It is a metabolite composed of three amino acids - glycine, methionine and arginine - all produced in the body. The human liver has the ability to combine these three amino acids and produce creatine naturally. The other way we get creatine is from our diet and through supplements.

After less than two weeks of taking creatine as a supplement positive results are evident. This is why creatine is one of the most popular bodybuilding supplements available over-the-counter. With creatine as a supplement the body is exposed to 4 grams of creatine per kilogram. Red meats provide only 1 gram of creatine per large serving.