Creatine is a natural substance used by the body for energy production.
It is produced primarily in the liver, kidneys and the pancreas. Creatine is formed by combining the two amino acids arginine and glycine with help from the amino acid methionine. Creatine is transported into the muscle cells of the body where 95-98 percent of the body's creatine supply is stored. Our bodies produce approximately one to two grams of creatine per day, which accounts for about one-half of the body's daily requirement. Creatine can also be obtained naturally from the diet by eating meat and fish.