Vitamin B6 is a water-soluble vitamin that is also referred to as pyridoxal phosphate. In its active form, vitamin B6 is used as a cofactor in amino acid metabolism. It is also used in the enzymatic reactions that control the release of glucose from glycogen.This vitamin was discovered in the 30s when nutrition studies were being performed on rats. It was later discovered that the vitamin could actually exist in more than one form. The vitamin plays a very important role as a cofactor in the various enzymatic reactions that occur in the body. These enzymes are mainly amino acids and are very important in the proper functioning of the body’s functions.